For all those who have been waiting to see them, here's some pics of the prototypes. I just finished them this afternoon and I'm very pleased with the final design. I hope to have a successfull testing of them to report this week and the production will begin shortly thereafter. Nothing is for sale at this point as site sponsorship hasn't been secured yet, but look for a "For Sale" thread very soon.

http://i152.photobucket.com/albums/s190/angelajeanmessina/G8pics017.jpg

http://i152.photobucket.com/albums/s190/angelajeanmessina/G8pics018.jpg

http://i152.photobucket.com/albums/s190/angelajeanmessina/G8pics019.jpg

http://i152.photobucket.com/albums/s190/angelajeanmessina/G8pics020.jpg

These will sound awesome on the G8 and remove almost 20 lbs of dead weight!

S.F.

i love the tips!

Looks great - can't wait to hear sound clips inside and outside of the car. :popcorn2:

looks really good !!! now for the sound :popcorn2:

looks really good !!! now for the sound :popcorn2:

Listen to "gbcop"s clips. I provided him the same mufflers and tips......

Thanks to all for the kind words!

S.F.

Better get in line now guys. I have one of SF's magnaflow axlebacks for my GTO and the fit and finish is amazing. I challenge you to find another manufacturer or exhaust shop out there that can build a better axleback system than SF can...you simply won't...

Better get in line now guys. I have one of SF's magnaflow axlebacks for my GTO and the fit and finish is amazing. I challenge you to find another manufacturer or exhaust shop out there that can build a better axleback system than SF can...you simply won't...


Thank you very, very much! As you well know, I work damn hard to make sure anything with my name on it is perfect. The G8 products will be no different.

S.F.

Thank you very, very much! As you well know, I work damn hard to make sure anything with my name on it is perfect. The G8 products will be no different.

S.F.

:iagree: I'm a very critical person, and strive for perfection with everything I do with my car, and perfection is exactly what you build!

Is there any pricing yet on your systems?

Any chance of different tips? I'm partial to the dual/dual myself, but double-walled unlike the stockers single walled.

Any chance of different tips? I'm partial to the dual/dual myself, but double-walled unlike the stockers single walled.

Ditto for me. I would prefer a dual/dual for my tastes on the G8.

Maybe some tip options??

SUbscribing...

Ditto for me. I would prefer a dual/dual for my tastes on the G8.

Maybe some tip options??

SUbscribing...


At this point I have been unable to find a single-in/dual-out tip that is not too long. The space constraints between the muffler body and the maximum tip extension are what dictates which tip will work. I'll keep searching for them though......

I will offer some systems using stock tips only when they are available to me.

S.F.

I love the stock tips...if you find them, you got yourself a sale.

Want!

I am stoked!!!!!! Can't wait to see in person and hear them. :)

any guesstimates on pricing??

any guesstimates on pricing??

Less than $450 shipped. Pricing will be anounced in the formal sale thread once its created.

S.F.

mark me down for a set..........this will make for one fun saturday morning and even better afternoon of test driving

Very nice. I'd also like to see it with stock tips. I would be willing to send mine off my factory set. Perhaps others will as well.

BTW, I'd be willing to test those for you. :)

Everything looks great man! Excellent work!
So the stock mufflers are heavier than the Maggies huh? That's great to know. :)

great work once again ryan.....my H pipe is still in perfect shape on my goat :)

Any chance you'll be offering a catback or a combo of this system with the H or X pipe?

StolenFox, it sure looks like you do nice work. Kudos to ya.

Any chance you'll be offering a catback or a combo of this system with the H or X pipe?

There wont be a catback offering from me as I have no access to a mandrel bender. I'll probably be offering a combo that can save $$$ from combining the shipping.

Depends on if I can build them all fast enough. One the GTO products, I would fabricate a run of H-pipes, then box and ship them. I would then build axlebacks for a few days and then box and ship them.

I'm going to try and enlist some help with the packaging so I can spend more time in the garage manufacturing.

Stay tuned........

S.F.

Hey, SF -

Just to make things clear - the Magnaflows are sound enhancement only, with no expectation of increased performance - is this correct?

at 3:30pm today I'll have the S.F. Proto type H-Pipe installed. I will take some additional video clips of the car in neutral revving, along with the interior sound of the vehicle at highway speeds (around 55mph-65mph) while enroute to the muffler shop. I'll also take some an additional video of the interior sound with the H-pipe on the way home at above mentioned highway speeds, as well as an idleing and revving clip as well.

Stay tuned.

I can't wait to get the H-Pipe on here, it sounds VERY good.

Here's the axle back at idle.

http://www.youtube.com/watch?v=O8QyFuIMI9o

Hey, SF -

Just to make things clear - the Magnaflows are sound enhancement only, with no expectation of increased performance - is this correct?

That should not be true at all. There should be some gains, they may be minor but there should be gains. With a tune the gains should be even greater because of how restrictive the stock exhaust is.

That should not be true at all. There should be some gains, they may be minor but there should be gains. With a tune the gains should be even greater because of how restrictive the stock exhaust is.
dodson, my point is that the stock resonator and pipes are still on, and if they are the most restrictive part of the system then a set of mufflers won't get get you any more ponies. Good sound, unquestionably.

Now, I can understand how an h- or x-pipe could net a couple of horsepower due to greater scavenging efficiency.

dodson, my point is that the stock resonator and pipes are still on, and if they are the most restrictive part of the system then a set of mufflers won't get get you any more ponies. Good sound, unquestionably.

Now, I can understand how an h- or x-pipe could net a couple of horsepower due to greater scavenging efficiency.

hmmm, I didn't think about that part. LOL I am very one track. :eek2:

All the more reason to spend the extra and get the h pipe ;)

All the more reason to spend the extra and get the h pipe ;)
That's what I'm thinking........:)

gpcop, how does the exhaust enhancement sound when the DOD kicks in? I am curious as to if you even notice it. I dont want my car to sound like a honda civic with a 4 inch tip while I am cruising the highway.

I love the stock tips...if you find them, you got yourself a sale.

ditto

gpcop, how does the exhaust enhancement sound when the DOD kicks in? I am curious as to if you even notice it. I dont want my car to sound like a honda civic with a 4 inch tip while I am cruising the highway.

What's wrong with a rice blower? :gr_jest:

What's wrong with a rice blower? :gr_jest:
The 4-banger in my Kawasaki ZX-12R will certainly get your attention!

What's wrong with a rice blower? :gr_jest:

The 4-banger in my Kawasaki ZX-12R will certainly get your attention!

Gentleman, S.F. humbly requests that all referrences to rice burners, time warping street bikes at full wail, or industrial power equipment not be mentioned in the same context as S.F. G8 exhaust products.


Dont want any confusion.........:D

S.F.

Gentleman, S.F. humbly requests that all referrences to rice burners, time warping street bikes at full wail, or industrial power equipment not be mentioned in the same context as S.F. G8 exhaust products.


Dont want any confusion.........:D

S.F.
Okay, I promise not to mention industrial power equipment! :angel:

Under $450 shipped?

I'll take a set too.

gpcop, how does the exhaust enhancement sound when the DOD kicks in? I am curious as to if you even notice it. I dont want my car to sound like a honda civic with a 4 inch tip while I am cruising the highway.

Really about the only difference is a harmonic pitch difference... When I take off after while to get the H-Pipe put on, I'll have the car in "Engineering Mode" showing the car going in and out of DOD.

Ok, Youtube just brought my video live of my car in neutral.

http://www.youtube.com/watch?v=K0BKW9R1vpA

Ok, Youtube just brought my video live of my car in neutral.

http://www.youtube.com/watch?v=K0BKW9R1vpA

Is that with the H-pipe?

Love the sound gbcop! Thanks man!

Is that with the H-pipe?

No!

The H-pipe is being installed on David's car at this exact moment.




S.F.

S.F.

PM me when your ready to sell. I want a set.

Joe

No!

The H-pipe is being installed on David's car at this exact moment.

S.F.
Well then, what the hell are you doing surfing the Internet? :p

Well then, what the hell are you doing surfing the Internet? :p


Because David lives 6 hours south of me and his muffler shop of choice is handling the heavy lifting for me.:D

S.F.

Because David lives 6 hours south of me and his muffler shop of choice is handling the heavy lifting for me.:D

S.F.
Ah! Lucky you! :)

SF, what's your anticipated price on the H-pipe?

SF, i say you call gbcop and tell him to post a video as soon as they are done....

Okay folks. I'm fixing to upload 3 video's of the interior of the vehicle to Youtube. One is from the interior of the vehicle going in and out of DOD on the way to the muffler shop. Another is with the H-pipe from 0 to approximately 90mph(wasn't easy on crappy county road holding the phone and watching the road..) and the last is traveling at 62mph with the DOD activated.

BRB- Off to youtube

How do you like the h pipe? Can't wait to hear and see the vids. You gonna get us some new videos with the h pipe from the outside too? LOL It's never ending, huh.

Okay, here's the new video's. Sorry for the poor quality, but this is better than nothing :p

No H-Pipe Alternating in and out of DOD
http://www.youtube.com/watch?v=p3D8umlVppI

H-pipe interior at 60mph in DOD
http://www.youtube.com/watch?v=1PaKhqbRb0I

Here's what I got for the moment... Been 10 minutes and my 0-90 with the H-pipe hasn't fully loaded...

Still waiting on two more videos to upload of startup with the H-pipe and a rev video

Here's a video of the G8 starting up with Stolen Fox's H-pipe installed
http://www.youtube.com/watch?v=JkQpOdkEa8A

Still waiting on two more video's to finish "processing" I've even gone soo far to remove the last two video's and have attempted to upload them again...

Chris lets just hope that it doesn't RAIN!!!!!

See you guys Thursday.

FINALLY... Last two video's

Revving Engine with Stolen Fox H-Pipe
http://www.youtube.com/watch?v=B-66qGkHX7o

Interior with Stolen Fox H-pipe 0-90mph
http://www.youtube.com/watch?v=UHor_T7_0Iw

WOW!!!

that sounds perfect...

Congrats!!!:ohsnap1:

FINALLY... Last two video's

Revving Engine with Stolen Fox H-Pipe
http://www.youtube.com/watch?v=B-66qGkHX7o

Interior with Stolen Fox H-pipe 0-90mph
http://www.youtube.com/watch?v=UHor_T7_0Iw

Awesome video work! I wish we had access to high fidelity recording equipment. It would be great to be able to show everyone how it sounds without the extra noise created by the camera / wind.

I hope you are pleased with the total package.

S.F.

SF, how long till you can promote price...

yea i know about the whole site/sponsorship ordeal....

Thanks...

SF, how long till you can promote price...

yea i know about the whole site/sponsorship ordeal....

Thanks...

The anouncement should be made next week. I am waiting to test the prototype axleback set on "dodson914"s car on Thursday and waiting on the wholesaler to get enough stock on the mufflers, tips, flanges, hangers and bends.

Once these items come into place then I will pony up the dough for site sponsorship and get started. I have a feeling I'm not going to be able to keep up with demand.........

S.F.

Sounds pretty good!

So the H-pipe replaced the center muffler/resonator but you still have the two smaller resonators?

How is the drone at crusing RPM 1500 - 1800? little or none?

The anouncement should be made next week. I am waiting to test the prototype axleback set on "dodson914"s car on Thursday and waiting on the wholesaler to get enough stock on the mufflers, tips, flanges, hangers and bends.

Once these items come into place then I will pony up the dough for site sponsorship and get started. I have a feeling I'm not going to be able to keep up with demand.........

S.F.

I'll take a set with H-pipe.:thumbsup:

NICE. it sounds great. GBCOP now you have to go on a dyno and post some numbers. Untill then how's the "butt" dyno feel?

I think these will fit the V6's as well.

Did you save the PM's then S.F.? I would like mine with the Magna-Flow X pipe if possible...

I just want to make sure I get mine before July. Any sooner would be a waste as I haven't the car yet...

Hi Fellas
First post but a long time lurker here and LS1GTO.COM, just a word of warning which you may have heard before - and no disrepect to Stolen Fox here- the VE series Commodore is renowned for droning ( auto is worst) at around the 55 -65mph area more so on small hills etc the auto will not need to change down.

Very few systems in Oz or NZ have managed to get rid of this, I personally had an axleback done shortly after purchase on my R8 and it sounded great but the drone was shocking, changed back to standard as my ears could not handle it.

I have been in a VEs with different systems and ALL have droned to some extent, if you can live with it no probs but be warned it appears its not as easy to build a loud / more free flowing system on the VE than it was on the GTO :cry:
Cheers
Jay

Hi Fellas
First post but a long time lurker here and LS1GTO.COM, just a word of warning which you may have heard before - and no disrepect to Stolen Fox here- the VE series Commodore is renowned for droning ( auto is worst) at around the 55 -65mph area more so on small hills etc the auto will not need to change down.

Very few systems in Oz or NZ have managed to get rid of this, I personally had an axleback done shortly after purchase on my R8 and it sounded great but the drone was shocking, changed back to standard as my ears could not handle it.

I have been in a VEs with different systems and ALL have droned to some extent, if you can live with it no probs but be warned it appears its not as easy to build a loud / more free flowing system on the VE than it was on the GTO :cry:
Cheers
Jay

Maybe you haven't listened to my video's?? :confused:

The drone before the H-pipe wasn't bad at all, and now that I've got the H-pipe installed it's reduced what "Drone" it had before.

Even before you could have your radio barely audible and still carry on a nice quiet conversation with a passenger easily with the "Drone". Check out my video's...

Hi Fellas
First post but a long time lurker here and LS1GTO.COM, just a word of warning which you may have heard before - and no disrepect to Stolen Fox here- the VE series Commodore is renowned for droning ( auto is worst) at around the 55 -65mph area more so on small hills etc the auto will not need to change down.

Very few systems in Oz or NZ have managed to get rid of this, I personally had an axleback done shortly after purchase on my R8 and it sounded great but the drone was shocking, changed back to standard as my ears could not handle it.

I have been in a VEs with different systems and ALL have droned to some extent, if you can live with it no probs but be warned it appears its not as easy to build a loud / more free flowing system on the VE than it was on the GTO :cry:
Cheers
Jay

Thanks for the warning Jay, but this isn't my first Rodeo. The mufflers ive selected for use in my axlebacks have been thoroughly tested on the G8 already with NO DRONE. Just a nice V8 rumble from the bottom of the tach to the top.

More to the point, when the resonator is removed and replaced with a crossover (H-pipe or X-pipe not straight tubing) the interior resonance lessens. This is due to the removal of the hollow expansion area of the resonator.

The homework has already been done here.......

S.F.

Hi Fellas
First post but a long time lurker here and LS1GTO.COM, just a word of warning which you may have heard before - and no disrepect to Stolen Fox here- the VE series Commodore is renowned for droning ( auto is worst) at around the 55 -65mph area more so on small hills etc the auto will not need to change down.

Very few systems in Oz or NZ have managed to get rid of this, I personally had an axleback done shortly after purchase on my R8 and it sounded great but the drone was shocking, changed back to standard as my ears could not handle it.

I have been in a VEs with different systems and ALL have droned to some extent, if you can live with it no probs but be warned it appears its not as easy to build a loud / more free flowing system on the VE than it was on the GTO :cry:
Cheers
Jay

Thanks for the warning Jay, but this isn't my first Rodeo. The mufflers ive selected for use in my axlebacks have been thoroughly tested on the G8 already with NO DRONE. Just a nice V8 rumble from the bottom of the tach to the top.

More to the point, when the resonator is removed and replaced with a crossover (H-pipe or X-pipe not straight tubing) the interior resonance lessens. This is due to the removal of the hollow expansion area of the resonator.

The homework has already been done here.......

S.F.

StolenFox --> :slap: <-- HSV R8

gbcop - Many thanks for taking the time to post your videos. The pipes sound great. :)

So, can someone explain, or point me to a link explaining the difference between an X and an H pipe? I've heard it's a prefference. Will there be an X pipe from you S.F?

Sorry if you've answered this 80 times already.

SF and gbcop thanks for doing this guys. Love the sound and the product looks promising. Let us know when you're taking orders SF. :thumbsup:

So, can someone explain, or point me to a link explaining the difference between an X and an H pipe? I've heard it's a prefference. Will there be an X pipe from you S.F?

Sorry if you've answered this 80 times already.

From what I understood they achieve the same thing but they get different tones. I believe the H pipe is supposed to be more of a low rumble than the x pipe. Could be wrong on this but that's what I remember when I was reading up on them.

I am sure S.F. will chime in. I am so excited about tomorrow I can't stand it! :eek2:

From what I understood they achieve the same thing but they get different tones. I believe the H pipe is supposed to be more of a low rumble than the x pipe. Could be wrong on this but that's what I remember when I was reading up on them.

I am sure S.F. will chime in. I am so excited about tomorrow I can't stand it! :eek2:


Correct. The "X" is more effective at combining exhaust pulses and as such some of the rumble is lost. Horespower differences at these power levels are within the margin of error. "X" make a little more horsepower up top while the"H" make a little more low end torque.

S.F.

That's why I combined them on my racecar ;) We were limited on diameter, so it actually picked-up quite a bit.

Correct. The "X" is more effective at combining exhaust pulses and as such some of the rumble is lost. Horespower differences at these power levels are within the margin of error. "X" make a little more horsepower up top while the"H" make a little more low end torque.

S.F.

Maybe you haven't listened to my video's?? :confused:

The drone before the H-pipe wasn't bad at all, and now that I've got the H-pipe installed it's reduced what "Drone" it had before.

Even before you could have your radio barely audible and still carry on a nice quiet conversation with a passenger easily with the "Drone". Check out my video's...

Hi
I have listened too and watched various videos here and other place but they really are not the same as sitting in the car on the move using your own ears.
The loudness inside the vehicle was not really the problem, just internal vibrations / buzzings that seem to be set of in the cabin.

I could have conversations with people in the car - even using my bluetooth set up - but the high pitched buzzing was driving me looney lol like a mini buzz saw in your ear. The VE V8s all seem to have a very slight "buzz" built in and from my experience most if not all modified exhausts (including full, catback and axlebacks) seem to just make this worse.

I will admit I seem to be prone to picking up high frequency vibes more than some people but its a well documented problem with the VE just check out the ozzie forums and they've been working on modding these cars for near two years now. Your not re inventing the wheel here, its been done before.

As I said my post was not to disrespect any members here just a warning really to get a drive inside a modded car before spending your hard earned cash.

Cheers
Jay

Hi
I have listened too and watched various videos here and other place but they really are not the same as sitting in the car on the move using your own ears.
The loudness inside the vehicle was not really the problem, just internal vibrations / buzzings that seem to be set of in the cabin.

I could have conversations with people in the car - even using my bluetooth set up - but the high pitched buzzing was driving me looney lol like a mini buzz saw in your ear. The VE V8s all seem to have a very slight "buzz" built in and from my experience most if not all modified exhausts (including full, catback and axlebacks) seem to just make this worse.

I will admit I seem to be prone to picking up high frequency vibes more than some people but its a well documented problem with the VE just check out the ozzie forums and they've been working on modding these cars for near two years now. Your not re inventing the wheel here, its been done before.

As I said my post was not to disrespect any members here just a warning really to get a drive inside a modded car before spending your hard earned cash.

Cheers
Jay

Agreed.

About 450 times before............

I understand your intent was to provide information to help the U.S. G8 owner so they may make an educated decision about their modifications and with this I dont argue. But given the fact that there is no data to support that G8's running my products will experience heavy droning your decision to post this in MY thread about a product I am developing is frustrating to say the least.

If you have been "Lurking" here and especially on LS2gto.com as long as you say you have then you are well aware of my flawless reputation for building top shelf products and providing excellent customer service. I do not build crap, I do not sell crap and for me "good enough" doesnt cut it.

I dont offer inferior products that create problems for the customer. A quick search over @ ls2gto.com makes that pretty obvious.

I respectfully request that if you have further issue that you would like to bring before the U.S. audience, please do it in a thread of your creation instead of de-railing mine.



S.F.

Agreed.

If you have been "Lurking" here and especially on LS2gto.com as long as you say you have then you are well aware of my flawless reputation for building top shelf products and providing excellent customer service. I do not build crap, I do not sell crap and for me "good enough" doesnt cut it.
S.F.



I know many of you think my opinion is biased, but bear this in mind. I've never meet S.F., and have only conversed with him on this forum and had 4 5min phone calls with the man. He stands behind his work, and has done nothing but make 150% certain I was happy with my exhaust.. I think to the very moment, if I called him right now and said, I changed my mind, I want my old exhaust back, he would do it in a heartbeat just so that I was 150% satisified.

S.F. is good people, and by no means does he sell garbage!

I know many of you think my opinion is biased, but bear this in mind. I've never meet S.F., and have only conversed with him on this forum and had 4 5min phone calls with the man. He stands behind his work, and has done nothing but make 150% certain I was happy with my exhaust.. I think to the very moment, if I called him right now and said, I changed my mind, I want my old exhaust back, he would do it in a heartbeat just so that I was 150% satisified.

S.F. is good people, and by no means does he sell garbage!

I believe you and your car sound great with the set up. Seems the H pipe woke up the growl of the motor. Now all I have to do is land my hands on a GT

StolenFox --> :slap: <-- HSV R8

:gr_jest:

So, can someone explain, or point me to a link explaining the difference between an X and an H pipe? I've heard it's a prefference. Will there be an X pipe from you S.F?

Sorry if you've answered this 80 times already.

http://www.g8board.com/forums/showthread.php?t=1933

sounds like the best g8 exhaust yet. And you're 20 lbs. lighter!

Are there any dyno numbers before and after???

Agreed.

About 450 times before............

I understand your intent was to provide information to help the U.S. G8 owner so they may make an educated decision about their modifications and with this I dont argue. But given the fact that there is no data to support that G8's running my products will experience heavy droning your decision to post this in MY thread about a product I am developing is frustrating to say the least.

If you have been "Lurking" here and especially on LS2gto.com as long as you say you have then you are well aware of my flawless reputation for building top shelf products and providing excellent customer service. I do not build crap, I do not sell crap and for me "good enough" doesnt cut it.

I dont offer inferior products that create problems for the customer. A quick search over @ ls2gto.com makes that pretty obvious.

I respectfully request that if you have further issue that you would like to bring before the U.S. audience, please do it in a thread of your creation instead of de-railing mine.



S.F.
Sorry Stolen Fox
It was not my intent to offend you, hi jack your thread and in no way was I infering that your product was not top quality.

My apologies
Jay

sounds like the best g8 exhaust yet. And you're 20 lbs. lighter!

There goes the 50/50 weight balance lol :shiner:

There goes the 50/50 weight balance lol :shiner:

That's alright, just pull off that silly plastic engine cover and you've got your balance back.:wink2::laugh:

Maybe I missed this but are there any sound clips with your Magnaflow axle-back + an aftermarket X pipe and also with an aftermarket H-pipe?

Coming from a mustang with flows and an aftermarket H-pipe, I think I'm going to prefer the H-pipe setup on this car if it gives me anything close to the nice exhaust tone I had with my stang. Only I would prefer it not as loud as that car!

Maybe I missed this but are there any sound clips with your Magnaflow axle-back + an aftermarket X pipe and also with an aftermarket H-pipe?

Coming from a mustang with flows and an aftermarket H-pipe, I think I'm going to prefer the H-pipe setup on this car if it gives me anything close to the nice exhaust tone I had with my stang. Only I would prefer it not as loud as that car!


"gbcop" has posted clips of his car with the axlebacks and stock resonator as well as clips of the axlebacks and my H-pipe.

I havent engineered the "X" yet, but that is on the schedule.

S.F.

"gbcop" has posted clips of his car with the axlebacks and stock resonator as well as clips of the axlebacks and my H-pipe.

Is this the current setup?

Cats-->SF H-Pipe-->the 2 stock bullet resonators-->SF magnaflow axelback

or did the H-pipe replace the center muffler AND the bullet resonators? Also, what model number magnaflows were used?

I am happy to report that moments ago I finished installing the prototype S.F. axleback for the G8 on "dodson914"s car. The axlebacks fit perfectly with no adjustment to the hangers required at all!

I was so excited/nervous to get a clean install that I completely forgot to take pictures....... Yes I know, me + no pics = lame. Hopefully Chris would be so kind as to take some installed pics.

Anyhow, Chris is on his way to Kinneys to get his H-pipe installed. i can't wait to hear his thoughts once thats done. Remeber Chris, the Magnaflows will get approx 30% louder as they "season".

Thanks to Chris aka "dodson914" for trusting your car to my handiwork. It was a pleasure meeting you and I hope your enjoy your new sound!

Keep your eyes peeled for the official "for sale" thread coming soon................


S.F.

Sounds like like you did a good engineering job. Congrats.

S.F.

When Chris installs his H-pipe, will he remove/replace/ or leave in the original mufflers?

Am very interested in your axleback system, but don't want it too loud. Assume I can keep it calm with the right front mufflers. Had a Suburban that I modded and after 30,000 mi it was really noisy. My Denali has a tamer flowmaster pair and at 60,000 mi is just fine! Love my White G8GT. 1 wk old!

RRM

I am happy to report that moments ago I finished installing the prototype S.F. axleback for the G8 on "dodson914"s car. The axlebacks fit perfectly with no adjustment to the hangers required at all!

I was so excited/nervous to get a clean install that I completely forgot to take pictures....... Yes I know, me + no pics = lame. Hopefully Chris would be so kind as to take some installed pics.

Anyhow, Chris is on his way to Kinneys to get his H-pipe installed. i can't wait to hear his thoughts once thats done. Remeber Chris, the Magnaflows will get approx 30% louder as they "season".

Thanks to Chris aka "dodson914" for trusting your car to my handiwork. It was a pleasure meeting you and I hope your enjoy your new sound!

Keep your eyes peeled for the official "for sale" thread coming soon................


S.F.

Thanks for the update. So is this the same setup as gbcop's? I can't wait to hear more clips (and better quality audio clips too.)

Just keep us updated on the tip options. I'm just not a fan of the single ovals. I actually really like the dual Borla slash-cut boxed tips with the intercoolers! hint hint!

BTW, althought the sound quality of the recording wasn't great I do think your h-pipe with the magnaflow axleback sounds very good from what I can tell.

That's great news SF! :thumbsup: Congratulations man and great job!

How bout some performance numbers before lifting off?? Any dyno's yet?

S.F.

When Chris installs his H-pipe, will he remove/replace/ or leave in the original mufflers?

Am very interested in your axleback system, but don't want it too loud. Assume I can keep it calm with the right front mufflers. Had a Suburban that I modded and after 30,000 mi it was really noisy. My Denali has a tamer flowmaster pair and at 60,000 mi is just fine! Love my White G8GT. 1 wk old!

RRM

Rob,

The stock axleback assemblies contain the stock mufflers so when the axlebacks are replaced you are in effect replacing the mufflers without welding. The H-pipe replaces only the large dual-in / dual-out resonator underneath the car in the center of the exhaust system.

The Installation of the H-pipe will make the axlebacks (stock or mine) about 30% louder.

S.F.

How bout some performance numbers before lifting off?? Any dyno's yet?

You paying for it?:thumbsup:

I dont own a G8 yet, so I'll be counting on owners to provide performance data. It can be assumed that the increase in exhaust flow should produce a nice little performance gain. That being said, this mod just like most exhaust mods are mostly for sound.

S.F.

Hey SF -

Is the H-pipe a bolt-in as well, or does it require some cutting and welding?

Hey SF -

Is the H-pipe a bolt-in as well, or does it require some cutting and welding?


Unfortunately the design of the G8 exhaust will not allow for a clamp in H-pipe so this one is a WELD ONLY install.


S.F.

S. F.

Didn't realize the resonator was in front of the axleback mufflers. Did see the cutaway of both and wondered why the major restriction seemed to be at the rear. G8GT is really quiet so won't have a problem with 30% increase. Will watch for your availability. I'm in Naples, FL now but car is heading to Iowa for 5 mo. around May 1. Will order from there. Would also like H or X pipe. Have shop that can install. Will do the axlebacks myself.

Thanks,

RRM

S. F.

Didn't realize the resonator was in front of the axleback mufflers. Did see the cutaway of both and wondered why the major restriction seemed to be at the rear. G8GT is really quiet so won't have a problem with 30% increase. Will watch for your availability. I'm in Naples, FL now but car is heading to Iowa for 5 mo. around May 1. Will order from there. Would also like H or X pipe. Have shop that can install. Will do the axlebacks myself.

Thanks,

RRM

Keep your eye out for the official "for sale" thread to follow shortly.

S.F.

It can be assumed that the increase in exhaust flow should produce a nice little performance gain. That being said, this mod just like most exhaust mods are mostly for sound.

S.F.

Hey SF, got a question. I want to keep my GT as quiet as possible (sleeper) but I do want more HP. Any suggestions? Brands to stick with?

I can handle some small amount of gain in low frequencies, but I don't want ANY drone.

Ryan it was great to meet you. You did an amazing job with this. I am beyond happy. The H Pipe went on without any problems. I don't have any pictures from when the car was on the lift. Sorry, guys. I do have this one from behind the car. I don't have time to get anymore right now because my fiancee and I have pre-marital counseling to go to. But, I will be more than happy to post up some more pics if you guys want.

http://i214.photobucket.com/albums/cc16/dodson914/20080410_0662.jpg

I don't have time to get anymore right now because my fiancee and I have pre-marital counseling to go to.


How fun! Nothing more awkward than sitting there with your soon to be wife answering the preacher's questions.... Went thru that almost two months ago myself. Congrats!

Ryan it was great to meet you. You did an amazing job with this. I am beyond happy. The H Pipe went on without any problems. I don't have any pictures from when the car was on the lift. Sorry, guys. I do have this one from behind the car. I don't have time to get anymore right now because my fiancee and I have pre-marital counseling to go to. But, I will be more than happy to post up some more pics if you guys want.

http://i214.photobucket.com/albums/cc16/dodson914/20080410_0662.jpg

Thanks for posting that pic! If its not too much trouble for you, I'm sure the others would like to see many more. I'm sorry that I didnt think of it.

Thanks again!

S.F.

The Installation of the H-pipe will make the axlebacks (stock or mine) about 30% louder.

S.F.


Interesting...I wouldn't mind hearing that combo (h-pipe and stock axleback exhaust).

Interesting...I wouldn't mind hearing that combo (h-pipe and stock axleback exhaust).


I'm sure that combo will be around here pretty soon........



S.F.

How fun! Nothing more awkward than sitting there with your soon to be wife answering the preacher's questions.... Went thru that almost two months ago myself. Congrats!

LOL

It actually isn't that bad. It's a couple at our church that has been trained by a counselor. It was awkward at first. Now it's not too bad. Only one more to go. Thank goodness.

Thanks for posting that pic! If its not too much trouble for you, I'm sure the others would like to see many more. I'm sorry that I didnt think of it.

Thanks again!

S.F.

No problem. I will try and grab some when she gets home from work tomorrow.

You paying for it?


Well, if is was going on my car, yes I would have done a before and after dyno. Did it on all of my past cars. Yes they are for sound, but it is nice to know which setup is the best bang for the buck. A little extra advertising that way dont you think? Sure its somewhat nice looking, but wheres the "beef".

very nice shot, looks great. One suggestion though. Get rid of that dealer badge! grosso!:barf:

very nice shot, looks great. One suggestion though. Get rid of that dealer badge! grosso!:barf:

It's coming off and so is the pontiac next to the G8. Gimme a break though. LOL I have had the car all of two weeks and I have a wedding coming up next month. Plus it's not even my daily driver. Debadging isn't exactly my top priorty.

I havent engineered the "X" yet, but that is on the schedule.

S.F.

I'm ALL over that and will order when that's available!

S.F.

My Denali has a tamer flowmaster pair and at 60,000 mi is just fine! Love my White G8GT. 1 wk old!

RRM

Yeah the Flowmaster is the same volume from the day you install to the day you get rid of them. No packing! That's the plus to them.

S. F.

I'm in Naples, FL now but car is heading to Iowa for 5 mo. around May 1. Will order from there. Would also like H or X pipe. Have shop that can install. Will do the axlebacks myself.

Thanks,

RRM

Really? Hmm... My parents have a house on Marco and are coming back to IA (Quad Cities) on the 18th of this month...

Ryan it was great to meet you. You did an amazing job with this. I am beyond happy. The H Pipe went on without any problems. I don't have any pictures from when the car was on the lift. Sorry, guys. I do have this one from behind the car. I don't have time to get anymore right now because my fiancee and I have pre-marital counseling to go to. But, I will be more than happy to post up some more pics if you guys want.

http://i214.photobucket.com/albums/cc16/dodson914/20080410_0662.jpg

Heck yeah man that looks great! The exhaust sits perfect under the bumper. Everything looks great tips and all. SF I tip my hat off to you man. Excellent job! :bubbrubb: I want that axleback with an X pipe for mine.

Heck yeah man that looks great! The exhaust sits perfect under the bumper. Everything looks great tips and all. SF I tip my hat off to you man. Excellent job! :bubbrubb: I want that axleback with an X pipe for mine.

I agree... fits looks perfect.

One thing that might help those tips is to blackout the inside of them... although they may do that naturally after some time.

I agree... fits looks perfect.

One thing that might help those tips is to blackout the inside of them... although they may do that naturally after some time.

I was thinking the same thing but I think too that once you get some miles on it it'll darken out on it's own anyways. If not enough then I'll just grab a can of heat resistant flat black paint and just paint the inside of the tips myself. I'm pretty sure that it'll darken out on it's own though.

I was thinking the same thing but I think too that once you get some miles on it it'll darken out on it's own anyways. If not enough then I'll just grab a can of heat resistant flat black paint and just paint the inside of the tips myself. I'm pretty sure that it'll darken out on it's own though.

The inside is that bright becasue I coated them with a 1200 degree silver ceramic coating to help prevent heat discoloration on the outside of the tips. I can use black as well but I am afraid that since black absorbs heat, it may not have the effect of the reflective silver.

S.F.

Are the tips polished? I can't tell from that pic.

Exhaust looks GRRREAT! I am a huge fan of the twin tips on the factory exhaust. HOWEVER...the new tips you have installed really look good. Can't wait until the axle back goes on sale!

Are the tips polished? I can't tell from that pic.


Yes.

Also, I just finished cutting open the stock mufflers to take a look at the design. All I can say is it no wonder these cars are whisper quiet. When I get home I'll start a new thread with pics detailing the design of the stockers.

S.F.

The inside is that bright becasue I coated them with a 1200 degree silver ceramic coating to help prevent heat discoloration on the outside of the tips. I can use black as well but I am afraid that since black absorbs heat, it may not have the effect of the reflective silver.

S.F.

So it looks like your tips are single-walled and not double-walled, is that correct?

Yes.

Also, I just finished cutting open the stock mufflers to take a look at the design. All I can say is it no wonder these cars are whisper quiet. When I get home I'll start a new thread with pics detailing the design of the stockers.

S.F.

Excellent, I've been waiting for this.

This question is meant for StolenFox...

Would you ever consider using Flowmasters instead of the Megas that you are current using?

I guess I just old school, but I really like the sound of a V8 with Flowmasters on it. :oldfogey:

Those tips look like they were engineered for that cutout in the rear fascia. Very nice.

Those tips can't taper with the radius of the fascia, though (like the dual tips do) - do they look awkward from that perspective?

Anyhow that does look nice and the alignment is perfect.

Good work, SF.

very nice shot, looks great. One suggestion though. Get rid of that dealer badge! grosso!:barf:

It's coming off and so is the pontiac next to the G8. Gimme a break though. LOL I have had the car all of two weeks and I have a wedding coming up next month.
Hahaha, I did the same on mine. Gbcop did it first, though - we're merely copycats. It does look a lot more symmetrical without the Pontiac logo.

I've even considered removing all the badging from the rear.

The inside is that bright becasue I coated them with a 1200 degree silver ceramic coating to help prevent heat discoloration on the outside of the tips. I can use black as well but I am afraid that since black absorbs heat, it may not have the effect of the reflective silver.

S.F.Oh ok. I had no idea you coated the inside of the tips. That's really cool! The silver coating inside the tips doesn't look bad at all.

So it looks like your tips are single-walled and not double-walled, is that correct?

That is correct, single wall, rolled edge, slash cut, polished stainless. Tips selection has been by far the most frustrating and limiting factor in this product's developement. I will continue to seek out more options for tips.


Excellent, I've been waiting for this.

This question is meant for StolenFox...

Would you ever consider using Flowmasters instead of the Megas that you are current using?

I guess I just old school, but I really like the sound of a V8 with Flowmasters on it. :oldfogey:

I may do a "one off" to take care of your order if you like. I do not feel that a chambered muffler is going to play nicely when DOD kicks in. More to the point since the stock system is only 2.25" and 2" between the resonators, total system flow capability is paramount. Straight through mufflers will flow much better in this application.

Those tips look like they were engineered for that cutout in the rear fascia. Very nice.

Those tips can't taper with the radius of the fascia, though (like the dual tips do) - do they look awkward from that perspective?

Quite the contrary, I feel they fit the lines of the car very well. Perhaps "gbcop" and "dodson914" could post their thoughts on this subject. For what its worth, the differrence between the tips of the stock round tip is approx .75" which isnt much.

Anyhow that does look nice and the alignment is perfect.

Good work, SF.

S.F.

I may do a "one off" to take care of your order if you like. I do not feel that a chambered muffler is going to play nicely when DOD kicks in. More to the point since the stock system is only 2.25" and 2" between the resonators, total system flow capability is paramount. Straight through mufflers will flow much better in this application.



S.F.

I'd also be interested in hearing chambered FM mufflers. The sound is more important to me than the performance. And honestly, I can't imagine the increase in horsepower on a NA engine would be worth much even with straight-thru mufflers. But you bring up a good point about the AFM and chambered mufflers - might be a really bad tone.

I also know it's pretty darn difficult to avoid drone with chambered mufflers in my experience. In my mustang, I actually liked the drone/rumble but I had 4.10s in the rear end which effectively got me out of the drone-zone on the highway. Still, gotta love chambered mufflers + h-pipe on a V8 car! :-)

Here's the rest of the photos I said I would get. Sorry they are not the best. I don't have a lift or anything to raise the back end up so I had to just hold the camera up underneath. LOL If there is something I missed that you want to see let me know and I will try and snap a pic for you.

http://i214.photobucket.com/albums/cc16/dodson914/20080411_0665.jpghttp://i214.photobucket.com/albums/cc16/dodson914/20080411_0664.jpg
http://i214.photobucket.com/albums/cc16/dodson914/20080411_0667.jpghttp://i214.photobucket.com/albums/cc16/dodson914/20080411_0668.jpg
http://i214.photobucket.com/albums/cc16/dodson914/20080411_0670.jpg

Looks good, dodson!

Do you think you could get a pic close to where that last one is, but more like a rear 3/4 shot? I'd an oblique view to see how that tip looks relative to the curvature of the fascia. Thanks!

Not sure I fully understood what you said. Sometimes I am a little bit slow. LOL

I got the picture of what I think you are asking. But, photobucket doesn't seem to like it. Give me a few minutes for it to upload and I'll post it up.

Nice camera work Chris!

Thanks for taking the time to post the pics!

S.F.

Is this what you wanted Zaphod?

http://pic90.picturetrail.com:80/VOL2302/10597300/18924163/312877840.jpg

Is this what you wanted Zaphod?
Exactly!

Thanks, dodson, great pics and those tips look great, as does the rest of the system,

Thanks, all the credit goes to S.F.

I'll admit, I was a bit apprehensive about the tips at first and the placement of the axlebacks. After seeing them in person I was blown away. They sit perfectly imo. S.F.'s welding was GREAT. Measurements were perfect. He does absolute quality work.

Just a little welding.:D

http://img394.imageshack.us/img394/8792/g8pics021pc0.jpg

More to come.....


S.F.

S.F....

so would the price be cheaper with the stock tips or with the tips gbcop has?

(i know you cant give price figures just yet but just wanted to know)

Thanks

S.F....

so would the price be cheaper with the stock tips or with the tips gbcop has?

(i know you cant give price figures just yet but just wanted to know)

Thanks

Stock tips will be more expensive and will only be available when I can get my hands on OEM axlebacks.

S.F.

That exhaust sounds AMAZING! Interior drone I never really cared about, I had a WS6 that sounded like a beast. Just turn the radio on a little or put windows down.

I really like the stock tips better IMO. I like the dual/dual look, although I think GM could have put a slightly larger tips on the stock setup.

Very nice work though. I don't have a G8, but I want one. My test drive, the car was just too damn quite. Good to know quality parts are being made :)

I have to say, I am definitely getting an H pipe and a Stolen Fox axel back system with Magnaflow mufflers!

I do prefer the stock tips, but the oval tips are pretty decent too.

The sound is perfect, and if any gas milage or horsepower/torque can be gained, then all the better!

I get my Black G8 GT this Monday! :boink:

I have to say, I am definitely getting an H pipe and a Stolen Fox axel back system with Magnaflow mufflers!
I do prefer the stock tips, but the oval tips are pretty decent too.

The sound is perfect, and if any gas milage or horsepower/torque can be gained, then all the better!

I get my Black G8 GT this Monday! :boink:

Good to hear!

FYI: I spent the day building H-pipes so they will be ready to ship once sponsorship is active.

I will be building axlebacks continually as the components arrive at my wholesaler.

I want to say thank you to everyone who has posted such positive comments about my efforts here. It is great to read about everyone's excitement and will help keep me pushing hard to build this stuff for you guys.

S.F.

I've got a Q for you S.F. (And other current G8 owners here). Those flanges on the exhaust, where you bolt the axle-backs to, are those flanges stock on the exhaust, or do those need to be welded in by a shop?

I think when I get my hands on a GT I will definitely be putting something on here just so that I can (as well as others around me) hear that beautiful V8 rumble.

I've got a Q for you S.F. (And other current G8 owners here). Those flanges on the exhaust, where you bolt the axle-backs to, are those flanges stock on the exhaust, or do those need to be welded in by a shop?

I think when I get my hands on a GT I will definitely be putting something on here just so that I can (as well as others around me) hear that beautiful V8 rumble.

The flanges just after the flex joint are OEM and part of the original stock exhaust. No cutting, welding or fabrication of any kind is necessary to install my axlebacks. 15 minutes and a wrench are all you need.

S.F.

Oh heck yes, I will be doing this myself then! Prepare for future orders S.F! :ohsnap1::ftw:

let me know when u are putting them up for sale i want to but them they sound great love them

Will you offer other muffler choices? I like the Hooker Aerochamber.

I can't wait to order it either and I don't even expect my car till the end of July...:D

Will you offer other muffler choices? I like the Hooker Aerochamber.


My wholesaler doesn't carry them but what I have done in the past is to allow the customer to provide the mufflers for use in their axlebacks. All that is required is the part number so I can verify the correct fitment prior to having them shipped.


S.F.

that whole system looks great!!!

For more information, look here:

http://g8board.com/forums/showthread.php?t=2118


S.F.

Hey everyone, I'm a new member. But I have been following this site for several months while waiting impatiently for my Panther Black GT to get here. There is an unbelievable amount of great information here and some great sponsors with awesome products. I just got the call at 7:30pm last night and I can pick it up on this Friday. FINALLY!!! I have already ordered the New Era CAI, Vector's ECM special buy and want to order Stolen Fox's great set of Magna Flow Axlebacks. I wanted to let Stolen Fox know about a site that I found that is offering better than factory style dual stainless exhaust tips for sale. http://www.pfyc.com/c/G8EXH/Exhaust.html , maybe you can contact them to see where they are getting theirs so you can build your dual out axlebacks. Just a thought. I am sold on the dual chrome factory tips, but the more I look at the great design and style of the large oval single exhaust, the more I like it. Decisions, Decisions. At least I will finally have a car to put them on.

Hey everyone, I'm a new member. But I have been following this site for several months while waiting impatiently for my Panther Black GT to get here. There is an unbelievable amount of great information here and some great sponsors with awesome products. I just got the call at 7:30pm last night and I can pick it up on this Friday. FINALLY!!! I have already ordered the New Era CAI, Vector's ECM special buy and want to order Stolen Fox's great set of Magna Flow Axlebacks. I wanted to let Stolen Fox know about a site that I found that is offering better than factory style dual stainless exhaust tips for sale. http://www.pfyc.com/c/G8EXH/Exhaust.html , maybe you can contact them to see where they are getting theirs so you can build your dual out axlebacks. Just a thought. I am sold on the dual chrome factory tips, but the more I look at the great design and style of the large oval single exhaust, the more I like it. Decisions, Decisions. At least I will finally have a car to put them on.

First, welcome to the site and congrates on the new G8!!!

Thanks for the link to the tips, unfortunately they are too wide for the jig ive built as are most others ive tried. I had to build my jigs based on the OEM axlebacks whose tips are 5.75" wide. All dual round tips that ive found thus far are 6" or wider so they wont work. This is why I went with the ovals. I will keep searching for a dual round tip that will work.

Let me know if I can be of any assistance with your exhaust needs.

Thanks!

S.F.

S.F. , I am definitely going to get a set of your axlebacks. I am still debating over waiting for the possibility of duals on each side or the great looking oval that you have ready to go. I am going to be doing a few other mods on the outside of the car, especially to the front Pontiac nose piece and grill. So I think with those changes and adding your oval axleback, you won't be able to tell it is a Pontiac for sure. Nothing against the Pontiac name, but I think they should've made some mods to the front end saying" this is the new Pontiac". You can drive down the freeway and count way too many Pontiacs from miles away by that old style front end grille. The rest of the car's style is awesome and really goes after the BMW. I will be in touch to order your axlebacks with in the next week or so, if you aren't able to come up with the duals.

Stolen,

Is your axle back system stainless?

Stolen,

Is your axle back system stainless?

The tips, mufflers and piping are 304 SS. The hangers and flanges are regular mild steel with ceramic coating. FYI: the OEM flanges are mild steel as well.

S.F.

thanks. ensuring that those of us in the North East and snowbelt will be good to go :thumbsup: