New exhaust problem
Thread Starter
Racer
Joined: Jan 2004
Posts: 351
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From: Hermiston Oregon
New exhaust problem
I recently had a set of Borla cat backs and a magnaflow x-pipe installed on my 04 Vert and although I am pleased with the sound, I am still hearing the exhaust popping when decelerating. Can anyone tell me why and what needs to be done to eliminate it?
Racer
Joined: Nov 2004
Posts: 326
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From: VA
The popping is back pressure, even the stock systems do it. It's just more pronounced because of the easier airflow of the Borla's and the new X-pipe. The only thing that I can suggest (and I did alot of research on exhausts before I purchased a set) is to replace them.
Burning Brakes
Joined: Dec 2004
Posts: 1,067
Likes: 3
From: Lost in the Pine Barrens with only ketchup and relish packs, New Jersey
I have Borlas on mine and get the popping on decel too. I like it though. I think I read that New Headers and High Flow Cats would definately get rid of it- but also make the overall sound louder. The popping was worse when they were brand new but seems to have lessened a bit as time goes on.
Pro
Joined: Feb 2004
Posts: 507
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From: Owatonna MN
Originally Posted by 99magredcoupe
I have Borlas on mine and get the popping on decel too. I like it though. I think I read that New Headers and High Flow Cats would definately get rid of it- but also make the overall sound louder. The popping was worse when they were brand new but seems to have lessened a bit as time goes on.
Sorny
Safety Car
Joined: Jul 2005
Posts: 4,275
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From: Vancouver WA
Usually exhaust popping is either from an exhaust leak, or it's from a over lean condition. With the Vettes, I would say it's a lean condition that is programmed in the fuel map to save fuel and cut down emmisions since it's OK to run lean on decel. A custom tune may solve the problem.
Last edited by RED99; Aug 11, 2005 at 07:11 PM.
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I have the same thing even though I did the x-pipe install. Its not so annoying that I can't live with it. Maybe the tune as mentioned above would help a bit.
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Burning Brakes
Joined: Sep 2003
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From: baton rouge la
Originally Posted by mark47
I recently had a set of Borla cat backs and a magnaflow x-pipe installed on my 04 Vert and although I am pleased with the sound, I am still hearing the exhaust popping when decelerating. Can anyone tell me why and what needs to be done to eliminate it?
Yes I can tell you what needs to be done to eliminate it.
Ditch the borlas and go with the magnaflow catback.
Mine does not do that on decelleration.
Its more of a low tone gurrgle and it sounds niceeee
