GM X-Pipe?
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Safety Car
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From: Phoenixville, PA
GM X-Pipe?
I read (somewhere) that GM offered an X-pipe to replace the H pipe on the exhaust system. Can anyone confirm this? If so, was it offered pursuant to a TSB? I'm hoping to find a way to get one onto my car under NASA TT rules.
Thanks.
Thanks.
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Haven't heard that one. Only X-pipes I have seen have been aftermarket. If there is one though, hopefully someone will post up the details.
Thread Starter
Safety Car
Joined: Jan 2005
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From: Phoenixville, PA
Yep. I thought I saw it on cf, but here as well -
http://www.z06vette.com/forums/f4/h-pipe-jingle-119246/
http://www.z06vette.com/forums/f4/h-pipe-jingle-119246/
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Interesting. Have you contacted your local dealer about it? That thread talks about a muffler shop modification to the oem cross over pipe as well as a "replacement" H pipe.
Try this to find GM technical service bulletins. Do a GOOGLE search using "gm tsb search" as keywords. There are multiple hits. Not knowing what year you're specifically looking for, I used "2003 chevrolet corvette" as keywords on this site and found lots to read. You can change the keywords to your specific year...
http://www.tsbsearch.com/Search?KeyW...ndDate=&Page=1
QUOTE:
" Re: H Pipe Jingle
Lemans;
There is a TSB that replaces the entire H-Pipe. I had it done years ago when it came out. Solved jingling problem--for the most part. The problem is that the "H" connector piece on the factory pipe was not the full diameter of the pipe. The TSB addressed this with the replacement H pipe with full internal diameter. Go talk to your local dealer. A search here and on other Vette sites will get you the TSB number.
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Melsy
'03 Red/Mod Red "
Try this to find GM technical service bulletins. Do a GOOGLE search using "gm tsb search" as keywords. There are multiple hits. Not knowing what year you're specifically looking for, I used "2003 chevrolet corvette" as keywords on this site and found lots to read. You can change the keywords to your specific year...
http://www.tsbsearch.com/Search?KeyW...ndDate=&Page=1
QUOTE:
" Re: H Pipe Jingle
Lemans;
There is a TSB that replaces the entire H-Pipe. I had it done years ago when it came out. Solved jingling problem--for the most part. The problem is that the "H" connector piece on the factory pipe was not the full diameter of the pipe. The TSB addressed this with the replacement H pipe with full internal diameter. Go talk to your local dealer. A search here and on other Vette sites will get you the TSB number.
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Melsy
'03 Red/Mod Red "
Last edited by hotwheels57; May 17, 2010 at 03:08 PM.
Thread Starter
Safety Car
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From: Phoenixville, PA
Jingling Noise on Deceleration or Coast Down (Section and Replace Intermediate Exhaust) #04-06-05-006 - (Jun 15, 2004)
Jingling Noise On Deceleration or Coast Down (Section and Replace Intermediate Exhaust)
2002-2004 Chevrolet Corvette
Anyone know what the replacement pipe looks like?
Jingling Noise On Deceleration or Coast Down (Section and Replace Intermediate Exhaust)
2002-2004 Chevrolet Corvette
Anyone know what the replacement pipe looks like?
Burning Brakes
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From: Houston Texas
Jingling Noise on Deceleration or Coast Down (Section and Replace Intermediate Exhaust) #04-06-05-006 - (Jun 15, 2004)
Jingling Noise On Deceleration or Coast Down (Section and Replace Intermediate Exhaust)
2002-2004 Chevrolet Corvette
Anyone know what the replacement pipe looks like?
Jingling Noise On Deceleration or Coast Down (Section and Replace Intermediate Exhaust)
2002-2004 Chevrolet Corvette
Anyone know what the replacement pipe looks like?
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Had my factory H pipe replaced with the replacement H pipe under warranty. Looks the same to me but did solve the jingle noise. I am one of the few that like the motor boat and popping sounds....plus still unemployed so an X pipe is not gonna happen.
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Melting Slicks
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From: Rochester Hills MI
There was a TSB for a jingle noise in the ti mufflers. replacing the h pipe with an x-pipe fixed the issue. The TSB calls for a Corsa x-pipe to be installed. it is not a gm x-pipe.
Melting Slicks
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I recall reading this TSB. There is another aspect to this problem that we need to keep in mind. The stock GM H-pipe also has a problem with the tangs that hold it to the hanger springs. Most of the time, they're too long or of unequal length which causes the springs to be loose and rattle. I went with a Corsa x-pipe which not only has a smoother exhaust path but also has shorter tangs. When installed, the hanger springs are much tighter eliminating any chance that they rattle.
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Well the only one I can think of is on the C6's but never on the C5's - Thanks,Matt
Racer
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From: Elizabethtown Kentucky
I own 98 vert and a 99 coupe. I went to my local muffler shop and had them modify the H pipe. GM only puts a 3/4" at best hole for the crossover to work. On the 99 the holes were really offset from each other. The shop dropped the exhaust pipes from the headers, took a 2 1/2"hole saw, drilled a hole on the side where the H pipe connected and drilled out the H pipe to the full size. Then they welded the portion they drilled out on the side back on. This elimated the popping sound, and improved performance for $45.