full 3" exhaust
Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
full 3" exhaust
I have an 08 base with intake, 1-7/8 tsp headers and 3" xpipe with 150 shot of nitrous. The car currently has factory npp, Im wanting to get rid of the npp and run full 3" exhaust to the tips. I know there are a few companies that offer 2.5" back (B&B, hooker) but no 3". Is this because of fitment issues? I will also be putting on twin turbos this winter with 3" down pipes, I would like the car to already have a full 3" system on it before then. There are no exhaust shops I trust around here to fab something up, is there any options for me? Whats your guys input, thanks.
Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
Melting Slicks
Joined: Jun 2006
Posts: 2,492
Likes: 261
From: Miami Florida
My '11 a6 gs has 3 inch across no fitment issues with Corsa sport or my home made alum system there's plenty of room no hammer to my pipes, did trim crap here and there not necessary.
I must add the Corsa sport p# 9328 with removable over axle pipes are ideal sense it allows wiggle to center as needed.
I must add the Corsa sport p# 9328 with removable over axle pipes are ideal sense it allows wiggle to center as needed.
Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
My '11 a6 gs has 3 inch across no fitment issues with Corsa sport or my home made alum system there's plenty of room no hammer to my pipes, did trim crap here and there not necessary.
I must add the Corsa sport p# 9328 with removable over axle pipes are ideal sense it allows wiggle to center as needed.
I must add the Corsa sport p# 9328 with removable over axle pipes are ideal sense it allows wiggle to center as needed.
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Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
Instructor
Joined: Jul 2017
Posts: 134
Likes: 8
I just snagged a set from an e-bay bid of $429 free ship. lots there with big price tags but some are bid and best offer. Mine were new take offs and they look it. I'm hoping I can get a shop to do the headers to the mufflers for a lot less than a grand but like you I'm worried about what shop?
Last edited by handyandy1496; Jul 20, 2017 at 11:14 AM.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I'd suggest you get electric cutouts to dump the 3" prior to the over-the-axle pipe for those few times you have the WOT urge and save the NPP 2.5" for regular driving.
Just flip the switch or tie it into the skinnie pedal to activate. Best of both worlds for really big power when you want it and pleasure driving at part throttle.
Just flip the switch or tie it into the skinnie pedal to activate. Best of both worlds for really big power when you want it and pleasure driving at part throttle.
Thread Starter
Burning Brakes
Joined: Jan 2017
Posts: 951
Likes: 42
From: Lincoln Ne
I'd suggest you get electric cutouts to dump the 3" prior to the over-the-axle pipe for those few times you have the WOT urge and save the NPP 2.5" for regular driving.
Just flip the switch or tie it into the skinnie pedal to activate. Best of both worlds for really big power when you want it and pleasure driving at part throttle.
Just flip the switch or tie it into the skinnie pedal to activate. Best of both worlds for really big power when you want it and pleasure driving at part throttle.
Last edited by g23crawler; Jul 21, 2017 at 05:07 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
just what you are trying to get away from .....not having 2 1/2 inch pipes
By the time the exhaust has traveled that far back it has cooled off enough that a 2 1/2 inch pipe is fine .......
Dave
Melting Slicks
Joined: Jun 2006
Posts: 2,492
Likes: 261
From: Miami Florida
Don't compromise you will love these...
Instructor
Joined: Jul 2017
Posts: 134
Likes: 8
Yep and the 3" before the 2 1/2" gives you a lot more volume throughout and more flow over the curves.
Melting Slicks
Joined: Jun 2006
Posts: 2,492
Likes: 261
From: Miami Florida
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