h-pipe today!! - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 22 (permalink) Old 03-27-2012, 05:56 PM Thread Starter
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h-pipe today!!

Got my h-pipe installed today. Sounds awsome with my solo axle backs. Although the exhaust note gets alittle out of control at WOT. Think im gunna put some resinators on when i can afford it(after my wedding) prob gunna use some of the wedding money for new wheels too hehe.
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post #2 of 22 (permalink) Old 03-27-2012, 08:38 PM
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Sound clip soon! I want to hear it.
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post #3 of 22 (permalink) Old 03-27-2012, 08:51 PM Thread Starter
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Ill try to get one up this weekend
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post #4 of 22 (permalink) Old 03-27-2012, 09:55 PM
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Awesome! I was thinking about going H pipe last fall when I got the super turbos but didnt have time that day to do it. Post Pics if you got em.

Do you have the shop fab up the H pipe or was it a Kit?

Whats the sound like? I would assume deeper than an X pipe and does it drone at lower RPMs.

Where did you place it? I am assuming where the mid muffler was but I am curious.

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Homemade Intake Tube with K&N drop in
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Quarter Mile 15.38 @ 92.49 MPH - 2.29 60' (5-12-2012)
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post #5 of 22 (permalink) Old 03-28-2012, 06:37 AM Thread Starter
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I had the shop fab one up for me, they tried lookin for a kit but it would have takin too long to get. Sorry no picks just dropped it off before work and picked it up after. It was put where the mid muffler used to be. It sounds a bit more deeper than the X from what ive herd on videos of x-pipe setup. I would highly recemend that you keep the stock resi on. I dont have them anymore and exhausr note gets alittle out of hand at WOT. It does drone alittle but im hoping that when i get some aftermarket resi put on it will fix everything. Ill try and get a video up this weekend.
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post #6 of 22 (permalink) Old 03-28-2012, 06:41 AM
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Drone even with the stock axlebacks? That's a surprise. I thought those mufflers would kill anything. What other intake/exhaust mods do you have?

Can't wait to hear a sound clip. I think this is the first h-pipe.

-Dennis-


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2009 G8 V6 PBM Premium+Comfort&Sound = SOLD
mods: Rotofab CAI, mid-muffler and resonator delete, Magnaflow x-pipe: http://www.youtube.com/playlist?list...d1qRKK_ChAwmZZ
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post #7 of 22 (permalink) Old 03-28-2012, 06:48 AM Thread Starter
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I have the solos on there. Havnt tried it with the stock cans. Im prob gunna put them back on tho until i get some resinators put on
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post #8 of 22 (permalink) Old 03-28-2012, 06:55 AM
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The resonators may not fix it. Have you considered talking to Solo about some J-pipes?

-Dennis-


2014 Camaro Silver Ice 2LT +RS
2009 G8 V6 PBM Premium+Comfort&Sound = SOLD
mods: Rotofab CAI, mid-muffler and resonator delete, Magnaflow x-pipe: http://www.youtube.com/playlist?list...d1qRKK_ChAwmZZ
GT brake upgrade: painted G2 black w/BrakePerformance slotted rotors and Hawk ceramic pads.
2000 Maxima Custom M/F Catback, K&N - SOLD
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post #9 of 22 (permalink) Old 03-28-2012, 07:07 AM Thread Starter
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Yeah ive considered it but i kinda want to calm down the exhaust note alittle too. I dont think the j would do that could be wrong tho.
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post #10 of 22 (permalink) Old 03-28-2012, 07:11 AM
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You are right about that. The Js will only kill the drone. I kept the stock cans, cut out the mid section and put in an X-pipe. Quiet at idle and cruising, nice sound at WOT. Perfect DD manners.

-Dennis-


2014 Camaro Silver Ice 2LT +RS
2009 G8 V6 PBM Premium+Comfort&Sound = SOLD
mods: Rotofab CAI, mid-muffler and resonator delete, Magnaflow x-pipe: http://www.youtube.com/playlist?list...d1qRKK_ChAwmZZ
GT brake upgrade: painted G2 black w/BrakePerformance slotted rotors and Hawk ceramic pads.
2000 Maxima Custom M/F Catback, K&N - SOLD
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post #11 of 22 (permalink) Old 03-28-2012, 11:44 AM
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I am eager to hear the sound clips. I would have had Super Turbos anyway had I gotten an H pipe so it would sound completely different but I want to hear the tone. Its got to be allot deeper.

How much did the shop charge for the fabbed H setup? My shop was gonna charge me $150 I think for a fabbed one.

I am also curious to get your performance impressions. I wonder how the theory will hold... More low end torque but negligible peak HP gain....

2008 Panther Black V6
Homemade Intake Tube with K&N drop in
Dynomax Super Turbo Mufflers
LPM with air scoop into the lower panel of the snorkel
Quarter Mile 15.38 @ 92.49 MPH - 2.29 60' (5-12-2012)
Click Here For Video
Quarter Mile 15.43 @ 91.01 MPH - 2.24 60' (6-14-2011)

SOLD 11/30/2012
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post #12 of 22 (permalink) Old 03-28-2012, 11:59 AM Thread Starter
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The shop charged me $250 there expensive around here. As for performance havnt really had a chance to drive the car that much. Will post updates after the weekend when ive had a chance to give er.
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post #13 of 22 (permalink) Old 03-28-2012, 05:29 PM
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Cool can't wait to hear.
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post #14 of 22 (permalink) Old 03-28-2012, 05:49 PM
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Install the H-pipe or X-pipe as close to the merge (or tranny) as possible. There is more scavenging (power) to be gained there. Dynomax VTs are superb for drone free cruising without sacrificing straight thru at WOT. Good luck!

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post #15 of 22 (permalink) Old 04-01-2012, 03:01 PM Thread Starter
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Well heres the video. didnt get a chance to really drive the car that much this week so cant really say performance wise how its runnin. i definitly need some resonators tho. im prob gunna take the solos off soon til i get the resonators.
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post #16 of 22 (permalink) Old 04-01-2012, 04:01 PM
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Sounds good, it will change some the more she carbons up. Drive her some to get the pipe seasoned...

2009 GT White Hot, AKA CASPER, Superchips 93 octane tune, Volant C.A.I with HSRK,Slotted and cross drilled rotors with ceramic pads,GXP Diffuser,Debadged.Solo axle backs, Coronet 440 style tips
Dyno 4/26/15,343 MAX H.P.,338.6 MAX TORQ
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post #17 of 22 (permalink) Old 04-01-2012, 04:34 PM Thread Starter
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I know ita gunna change a little considering most of my mid section is new pipes
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post #18 of 22 (permalink) Old 04-01-2012, 05:01 PM Thread Starter
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My soon to be wife drives it all week but she babies it and she only takes it to work thats only 5 mins away. So it will take awhile to carbon up if she only drives it lol.
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post #19 of 22 (permalink) Old 04-01-2012, 05:44 PM
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i had an h pipe on my ride for a while. made it sound
like an older hot rod v8. the exhaust sounded way out
of balance.

jason


02 powerstroke - slightly modded
04 gto - stroked
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post #20 of 22 (permalink) Old 04-01-2012, 08:57 PM Thread Starter
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Im hoping that when i get some resonators welded on that this will be my last exhuast setup on this car. Spent too much money trying to get the exhaust note to be unique.
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