American Racing Headers installed , dyno results inside !

These are the 1 7/8 primaries , with cats and xpipe , everything all the back to the stock muffler . We sell these for $1705 , installation takes about 3-5 hours depending on what you have to work with . You can order online at www.neweraperformanceparts.com anytime or call in during business hours .

Last time I dynoed the car , it had a New Era Intake , and Powerbond Underdrive pulley , the only thing done was the headers were added and the throttle body was ported . Here is the dyno graph :

The gain was 32 rwhp , and 26 rwtq . Final numbers were 370 rwtq and 355 rwhp on a dynojet .

http://www.neweraperformanceparts.com/Images/g8%20dyno%20graph.JPG

Thanks ,
Mike

American Racing Headers installed , dyno results inside !

These are the 1 7/8 primaries , with cats and xpipe , everything all the back to the stock muffler . We sell these for $1705 , installation takes about 3-5 hours depending on what you have to work with . You can order online at www.neweraperformanceparts.com anytime or call in during business hours .

Last time I dynoed the car , it had a New Era Intake , and Powerbond Underdrive pulley , the only thing done was the headers were added and the throttle body was ported . Here is the dyno graph :

The gain was 32 rwhp , and 26 rwtq . Final numbers were 370 rwtq and 355 rwhp on a dynojet .

http://www.neweraperformanceparts.com/Images/g8%20dyno%20graph.JPG

Thanks ,
Mike

What was the gain for the ported TB? Any idea?

Sound Clip???????????????????????????

Sound Clip???????????????????????????


Ditto !!!:slap:

What was the gain for the ported TB? Any idea?

In my TA it was more of a SOTP mod, more than anything else. Maybe 2-3 at best?? Keep in mind my knowledge is of ls1's so I may be full of :bs: with that guesstimate! Feel free to call me a liar Mike!:wink2:

I think I would have done that dyno only adding the exhaust, now there will be speculation about the numbers until that time. Have you tried adding some other mufflers just for the sound? The reason I ask is I would like more sound than the stock ones will afford but I don't want drone. I'm very interested in hearing about afm with this set up and say some Borla mufflers or the Magnaflow axle back.

Ported tb's in the G8 should be in the 2-4 rwhp range because they already have such a big throttle body , and maybe another 2-4 rwhp on top of that when you have a cam etc .

Probably would make more power/torque with the 1 3/4 headers. It just depends on your long term plans. I will use the 1 3/4 and N/a with the heads and small cam should be 500 at the flywheel minimum.

damn thats pretty good...I want these

Are these available in 1 3/4 or just 1 7/8? Also, any installed pictures Mike?

Mike, can we get a sound clip so I can decide if I'm going to stay stock, or also add the Magnaflows?!

Great results. Are these results with the stock mufflers? Did the sound inside the car change much? Did you retune the car after adding the headers?

Thanks

Yes , this is with the stock mufflers .

The car was already tuned with a New Era Intake , and underdrive pulley . The headers slightly changed the tune , so I retuned for optimum power and efficiency .

Here is a sound clip

http://www.youtube.com/watch?v=DcXKTK500r8

Are these available in 1 3/4 or just 1 7/8? Also, any installed pictures Mike?

They come in 1 3/4" also as that is what I ordered. I talked to Nick at ARH about what size to get and he agreed that unless you have plans for some monster hp, like +600 rwhp, then the 1 3/4" should be fine. They will also match up better to the exhaust ports on our heads. I expect them to give slightly better numbers on the NA motor cars.

Neil
'08 MGM G8 GT

http://i2.photobucket.com/albums/y18/fbodymadnezz/DSC00410.jpg
http://i2.photobucket.com/albums/y18/fbodymadnezz/DSC00409.jpg
http://i2.photobucket.com/albums/y18/fbodymadnezz/DSC00408.jpg
http://i2.photobucket.com/albums/y18/fbodymadnezz/DSC00407.jpg
http://i2.photobucket.com/albums/y18/fbodymadnezz/DSC00406.jpg

Damn, that is a clean, professional looking exhaust system. I'm not sure factory could do that good of a job if they put headers on a car.

Does it hit at the heat shield beside the oil filter. That looks like a pretty close fit. It appears that with some engine torque it might bump that shield. Can you give an idea of how close it comes?

Does it hit at the heat shield beside the oil filter. That looks like a pretty close fit. It appears that with some engine torque it might bump that shield. Can you give an idea of how close it comes?

99LS1SS, That's just the angle of the photo. There really isn't any clearance issues.

Nick

any chance you could show a shot with the engine cover on? Just want to see if it would be noticable to a smog tech.

Here is a sound clip

http://www.youtube.com/watch?v=DcXKTK500r8

WOW!! Talk about a total transformation in sound. It almost sounds like it has some resonance/chambered style mufflers!!

$1705! wow, you can almost buy exhaust for a f430 for that price!

PS: just playing the devil's advocate....

Are those the stock mufflers on the video? Man I bet that would sound wicked with some after market mufflers!

Yes , those are the stock mufflers !

Damn I can believe my eyes....a FRAM filter next to such beautiful artwork...:slap:

Sorry bout that filter , haha . I didn't even think about that until you mentioned it to me , I had one of the new guys change the oil a few weeks ago and looks like that is what he put on there . We'll have to change that next oil change .

i just looked at those pics and creamed in my pants lol. i cant wait for mine to come in.
im going to be installing here at home, any tips mike?

Mike, thank you for taking the time to show us. I'm totally sold on this system. It will be awhile before I can afford these (not that I think it is overpriced), but I know its worth the wait. Quality is top notch and it sounds perfect with stockers! Hell yeah! I speak for all of us here on G8BOARD.COM...thanks! :)

Yes, thanks for taking the time to post the pictures & the video clip. I am totally getting these American Racing Long Tube Headers! I think I prefer the sound of the Magnaflow mufflers vs. the stock muffler sound (with the ARH).

Does anyone know if you can swap out the stock mufflers for the Magnaflow mufflers in using the ARH Long Tube set up?

I really like the sound of the Magnaflow system, but REALLY like the power of the ARH Long Tubes.....

Very nice work!
Mike, in looking at the photo's, the stock axle back location remains. So, getting axle backs is not going to be an issue.

99LS1SS, That's just the angle of the photo. There really isn't any clearance issues.

Nick

Cool, thanks.

$1705! wow, you can almost buy exhaust for a f430 for that price!

PS: just playing the devil's advocate....

But, could you almost afford a f430 for $34K?

Damn I can believe my eyes....a FRAM filter next to such beautiful artwork...:slap:


Sorry bout that filter , haha . I didn't even think about that until you mentioned it to me , I had one of the new guys change the oil a few weeks ago and looks like that is what he put on there . We'll have to change that next oil change .

The "new guy" just wanted it to match the color of the car...

any chance you guys can swap out those mufflers and get a sound clip?

The "new guy" just wanted it to match the color of the car...

any chance you guys can swap out those mufflers and get a sound clip?

Yeah I thought about that too, on the color matching idea, but I had to get him on that....LOL:stickpoke:

Yeah I'd like to hear a sound clip w/ aftermarket myself if it's not too much trouble...

$1705! wow, you can almost buy exhaust for a f430 for that price!

PS: just playing the devil's advocate....

I realize the price isn't going to work with everyones budget but I can assure you all, there's quite a bit you're getting for your money. For starters these systems are made using 100% U.S. sourced 304 S/S. That may not have been a big deal a few years ago but it most certainly is now. The other important point to keep in mind is that the ARH system extends beyond the rear axle to the factory mufflers. That a lot of system folks. Add to that the fact that for many, changing the rear mufflers won't be necessary.

Nick

That is a beautiful system, and I agree that considering that it extends all the way to the mufflers, it is not at all overpriced.

I don't suppose that there's any chance of 49-state certification?

(Or is it already certified - those are cats I see, correct?)

I don't suppose that there's any chance of 49-state certification?

(Or is it already certified - those are cats I see, correct?)

As they've stated... Off-road use only.

Ported tb's in the G8 should be in the 2-4 rwhp range because they already have such a big throttle body , and maybe another 2-4 rwhp on top of that when you have a cam etc .


OK so when are you selling them? :)

As they've stated... Off-road use only.

Dang it. :(

Maybe I'll have to have a chat with my local inspection guy to see what he's looking for. We do sniffer tests here and I think that if the car will pass emissions, it might be OK........

Dang it. :(

Maybe I'll have to have a chat with my local inspection guy to see what he's looking for. We do sniffer tests here and I think that if the car will pass emissions, it might be OK........

We discussed this topic in detail in this thread http://www.g8board.com/forums/showthread.php?t=3848

Basicly if you get the system with cats then you have a very good chance getting past any visual or sniffer test but by the letter of the law you are still not legal.

Neil
'08 MGM G8 GT

OK so when are you selling them? :)

U can not put this on a V MAX. LOL

sounds great

I just checked the State of Texas inspection manual online for exhaust system requirements. Here's some wording from the exhaust emissions section:

20.14 Exhaust Emission System. The owner or operator of any new motor vehicle or new motor vehicle engine beginning with the model year 1968 equipped with an exhaust emission system shall maintain the exhaust emission system in good operable condition and shall use it at all times that the motor vehicle or motor vehicle engine is operated. The owner or operator of the motor vehicle or motor vehicle engine shall not remove or intentionally make inoperable within the state of Texas the exhaust emission system or any part thereof, except where the purpose of removal of the exhaust emission system or part thereof is to install another exhaust emission system or part thereof, which is intended to be equally effective in reducing atmospheric emissions from the vehicle or engine.

So it's possible that as long as the car passes emissions and OBDII testing and has an operative catalytic converter, Texas doesn't care if you are using long-tube headers or whatever.

I'm gonna ask my regular inspection guy.

I just checked the State of Texas inspection manual online for exhaust system requirements. Here's some wording from the exhaust emissions section:

20.14 Exhaust Emission System. The owner or operator of any new motor vehicle or new motor vehicle engine beginning with the model year 1968 equipped with an exhaust emission system shall maintain the exhaust emission system in good operable condition and shall use it at all times that the motor vehicle or motor vehicle engine is operated. The owner or operator of the motor vehicle or motor vehicle engine shall not remove or intentionally make inoperable within the state of Texas the exhaust emission system or any part thereof, except where the purpose of removal of the exhaust emission system or part thereof is to install another exhaust emission system or part thereof, which is intended to be equally effective in reducing atmospheric emissions from the vehicle or engine.

So it's possible that as long as the car passes emissions and OBDII testing and has an operative catalytic converter, Texas doesn't care if you are using long-tube headers or whatever.

I'm gonna ask my regular inspection guy.

Sounds good to me...

I wonder... if you installed the AR system and smog tech happened to notice the headers if he would also notice the difference between the long and the short headers. Maybe you could just tell him they were the jba's and refer him to the carb number. Not legal, not ethical, but might work as a snow job on some of the smog techs. If they notice the cats though you would be screwed (I'm talking about CA here). If the system will pass the sniffer test I might be able to get by, if I find some one willing to do a sub par visual or a semi ignorant tech. Wonder if they train those guys to know the difference in appearance of an aftermarket cat to a factory one. I guess it would be worth while to visit a few smog stations and ask what the standard procedures are, though they could change down the road. Any one in CA know any friends who are smog techs that can get the skinny?

Still looking to hear some info about the sound of the system with afm kicked in and also with some aftermarket mufflers.

They will not be a problem in Texas. No check engine light and the readiness monitors are set. Thats all most stations look for.

They will not be a problem in Texas. No check engine light and the readiness monitors are set. Thats all most stations look for.
In Tarrant County we do load and no-load sniffer tests, too.

From what I can remember here in WA State it's any car over 5 years needs an emissions test, and then it's simply an OBDII hookup or if they're too old and don't have that an exhaust sniffer. Don't ever remember anyone looking under the hood/car so i'm REALLLLY tempted to get these headers.

Guys, I will tell you that any ARH equipped vehicle will pass smog/sniffer test when tuned properly. Most of these cars don't see more than an OBD II test which once again isn't an issue if tuned properly.

Nick

Just tell the guy (in my case its a girl) its a factory set up. By the time you have to get this car inspected , I don't think they will be as shinny as they are now.

Hey Mike

I like your systematic, step by step approach top Hp gains. I think it helps this community on leanring the value of upgrades.

mike
dms

Thanks as this has been my goal to the G8 community , I have been trying to test each product one at a time the best I can although at times it has been difficult getting the info up on here in certain sections . The cam is next ...

And of course , we will have to work some Pedders suspension parts in along the way !

American Racing Headers installed , dyno results inside !

These are the 1 7/8 primaries , with cats and xpipe , everything all the back to the stock muffler . We sell these for $1705 , installation takes about 3-5 hours depending on what you have to work with . You can order online at www.neweraperformanceparts.com anytime or call in during business hours .

Last time I dynoed the car , it had a New Era Intake , and Powerbond Underdrive pulley , the only thing done was the headers were added and the throttle body was ported . Here is the dyno graph :

The gain was 32 rwhp , and 26 rwtq . Final numbers were 370 rwtq and 355 rwhp on a dynojet .

http://www.neweraperformanceparts.com/Images/g8%20dyno%20graph.JPG

Thanks ,
Mike

Soon, very soon! Can you say low 12s boys and girls.

Hey Mike

I like your systematic, step by step approach top Hp gains. I think it helps this community on leanring the value of upgrades.

mike
dms

I appreciate it also, as I'm only doing one mod to the car at a time. I need to know what impact it will have elsewhere.

I appreciate it also, as I'm only doing one mod to the car at a time. I need to know what impact it will have elsewhere.

The only impact I care about is on my ETs!

I know that Charlie. I'm not a mechanic by trade, so I take more time to see what mods have done for me. I imagine my ET's may have lowered by what I've done.

I know that Charlie. I'm not a mechanic by trade, so I take more time to see what mods have done for me. I imagine my ET's may have lowered by what I've done.

You do damn good Ray! Your ETs should be better now with the trans tune fixed. I have talked to you enough to know that you KNOW how it works and that is the most important thing. If I gave you my tools and a lift, whew, there is no tellin what the indy state troopers would be sayin! :)

Has anyone compared the HP increases for the 1 7/8" vs the 1 3/4" LT ARH's?

Not that I know of , but I think the L92 heads really need the 1 7/8 especially if you have other mods coming in the future .

Just completed the ARH 1 3/4 LT headers. From start to stop, inlcuding removing old system, it took 4 hours and 6 minutes! Using jack stands and laying on the garage floor. Extremely simple system to install. Just need to follow the directions. No leaks or prolems. My hats off to American Racing. I dealt with both Mike and Nick during the ordering process (didn't need anything during install) and they were very understanding of my nagging on when they would be shipped. The headers were well worth the wait!

Now, any of you entrepreneurial types going to design a new under carriage body brace that allows more clearence for the pipes? The system comes with aluminum spacers and while ok, a new brace that is stronger and have a slight loop or bend would be a good thing.

From everything I've seen, the stock mufflers don't seem to be much of a hindrance to HP.

Does anyone make an X-pipe system that bolts up to the stock manifolds that can utilize the stock mufflers?

Just completed the ARH 1 3/4 LT headers. From start to stop, inlcuding removing old system, it took 4 hours and 6 minutes! Using jack stands and laying on the garage floor. Extremely simple system to install. Just need to follow the directions. No leaks or prolems. My hats off to American Racing. I dealt with both Mike and Nick during the ordering process (didn't need anything during install) and they were very understanding of my nagging on when they would be shipped. The headers were well worth the wait!

Now, any of you entrepreneurial types going to design a new under carriage body brace that allows more clearence for the pipes? The system comes with aluminum spacers and while ok, a new brace that is stronger and have a slight loop or bend would be a good thing.

Are you running this without a custom tune?

Are you running this without a custom tune?

No, I first bought a tuned ECM from VMS (kept my original ECM). Then started adding things, ending with the ARH LT headers and Roto Fab CAI. Once I did that I ordered the Flashxpress and flashed the ECM and TCM. With this final tune, it is as different as night and day. The headers made a huge difference but when I did that final tune to put to use the benefits of the headers and CAI it really woke the car up!

I put straight pipes on my car and only gained about 5 rwhp over the stock mufflers and I am over 400 rwhp (dod cam) , but it was rediculously loud so I took them off . The ARH system works , and I believe it is superior to the other system hands down .

Current 1/4 mile time 12.1 @ 114 mph with DOD cam


Mike: Are you going to be selling DOD Cams on the New Era Website?



...

Just completed the ARH 1 3/4 LT headers. From start to stop, inlcuding removing old system, it took 4 hours and 6 minutes! Using jack stands and laying on the garage floor. Extremely simple system to install. Just need to follow the directions. No leaks or prolems. My hats off to American Racing. I dealt with both Mike and Nick during the ordering process (didn't need anything during install) and they were very understanding of my nagging on when they would be shipped. The headers were well worth the wait!

Now, any of you entrepreneurial types going to design a new under carriage body brace that allows more clearence for the pipes? The system comes with aluminum spacers and while ok, a new brace that is stronger and have a slight loop or bend would be a good thing.

I was thinking the same thing. Total Control for Mustangs has a brace that is much larger then ours, but it does have the dips for clearance, so it can be done. It was all tubular also.

Mike: Are you going to be selling DOD Cams on the New Era Website?



...

Yes , still working on getting that up there , the package is available right now ordering over the phone .

Can one get the AR headers jet-coated...and what would be the cost for the headers and the tailpipes that go under the car to the rear mufflers?

I have found that jet-coating reduces the heat in the engine bay.

I have the American Racing headers and don't have any issues with underhood heat. I'm sure you can find a coater in your area. Mine have a nice golden color to them now.

I have the American Racing headers and don't have any issues with underhood heat. I'm sure you can find a coater in your area. Mine have a nice golden color to them now.

or you can wrap them your self with fiberglass header wrap.