WARNING to Anyone Adding an Exhaust - Diffuser Could Melt! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Inspector 17 · 10-14-2009, 05:50 PM

All, I have the GMPP exhaust and I am very happy with it. However, the other day I noticed something on the diffuser. When I bent down to look at it, I realized that the diffuser right above the exhaust was melted. In fact, when I looked at it more closely, a hole was melted completely through it. As I looked more closely, I noticed that the outlet on one side wasn't mounted as far out through the diffuser and it was a little closer to the top than evenly centered in the diffuser hole.

I took it to the dealer immediately. As always, they were great. They ordered the replacement diffuser and said they would readjust the outlet on that side to make sure it didn't happen again. If this had not been the GMPP exhaust and the dealer had not installed it, I am not so sure they would be doing so at no cost.

So, let this be a warning to you. Make sure you evenly mount the exhaust in the diffuser outlet and make sure it is sticking out through the diffuser far enough. I have included a few pictures of the melted side and of the other side.

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futrocpd · 10-14-2009, 05:52 PM

that sucks man

Scott@Bjorn3D · 10-14-2009, 06:00 PM

Yeah there was another car where the dealer did not center it and it did that. Yours also are sitting a little farther back in than mine.

towmoe · 10-14-2009, 06:13 PM

It looks like it may be happening because the exhaust tips are sitting pretty far back. I will keep that in mind when I change out mine.

iBK3000 · 10-14-2009, 06:15 PM

Dang, thanks for the heads up.

Jferrell88 · 10-14-2009, 06:19 PM

I think someone pointed this out before, tottally sucks though especially sinceirs the gm exhaust

brandotron · 10-14-2009, 06:25 PM

Ouch!

JM10 · 10-14-2009, 07:10 PM

You´re not going to believe me, but I have an appointment with an exhaust shop in 30 min.
I got my magnaflow installed yesterday

but tought that the exhaust tips where sticking out of the diffuser to much (about 1")

This is the look I want:

(Soloperformance)

Indpowr · 10-14-2009, 07:13 PM

It looks like they installed the exhaust to fair back. Sorry for the issues.

JM10 · 10-14-2009, 08:25 PM

Quote:

Originally Posted by Indpowr

It looks like they installed the exhaust to fair back. Sorry for the issues.

I was worried about the tips getting to close to the diffuser, but my mechanic told me that the MAIN problem is the hot air blowing thru the diffuser.

Thanks for posting your problem.

JM

kelleyperformance · 10-14-2009, 09:35 PM

Quote:

Originally Posted by JM10

I was worried about the tips getting to close to the diffuser, but my mechanic told me that the MAIN problem is the hot air blowing thru the diffuser.

Thanks for posting your problem.

JM

yea the tip itself doesnt do it, its the actual exhaust gas that does. every damn GMPP system ive seen has done this one time or another

many come into service like that

franknbeans · 10-14-2009, 10:58 PM

yeah the exhaust is way to far back. . . thus the melting... it is suppose to stick past the plastic.

Styffydawg · 10-15-2009, 01:18 PM

Just to play devil's advocate here but if you had gotten it done at a speed shop and not at the dealer, I wonder if they would have allowed the tip to sit so far back?

Dr Jkel · 10-15-2009, 01:25 PM

Please excuse my ignorance, what exhaust did you buy, I see that they sell two different kinds and I know one is " Off road". Did they do anything else to you car besides the exhaust, and lastly if you don't mind, how much did they charge you? Thanks

10-14-2009, 05:50 PM	#1
Inspector 17 I love crepes Drives: 2017 ZL1 NGM A10 Join Date: Oct 2008 Location: Maryland Posts: 4,955 View My Garage	WARNING to Anyone Adding an Exhaust - Diffuser Could Melt! All, I have the GMPP exhaust and I am very happy with it. However, the other day I noticed something on the diffuser. When I bent down to look at it, I realized that the diffuser right above the exhaust was melted. In fact, when I looked at it more closely, a hole was melted completely through it. As I looked more closely, I noticed that the outlet on one side wasn't mounted as far out through the diffuser and it was a little closer to the top than evenly centered in the diffuser hole. I took it to the dealer immediately. As always, they were great. They ordered the replacement diffuser and said they would readjust the outlet on that side to make sure it didn't happen again. If this had not been the GMPP exhaust and the dealer had not installed it, I am not so sure they would be doing so at no cost. So, let this be a warning to you. Make sure you evenly mount the exhaust in the diffuser outlet and make sure it is sticking out through the diffuser far enough. I have included a few pictures of the melted side and of the other side.

10-14-2009, 05:52 PM	#2
futrocpd P90X Drives: 2000 SLP SS VERT Join Date: Jul 2009 Location: Oklahoma Posts: 773	that sucks man __________________ 2000 Camaro SS/SLP P90X changed my life. Want to know more, PM me for more info on changing your life for the better

10-14-2009, 06:13 PM	#4
towmoe Drives: IBM 2010 Camaro Join Date: Dec 2008 Location: OKC Posts: 462	It looks like it may be happening because the exhaust tips are sitting pretty far back. I will keep that in mind when I change out mine. __________________ 2SS/M6 \| Imperial Blue Metallic \| White Stripes \| Black Int

10-14-2009, 06:15 PM	#5
iBK3000 Drives: '04 Range Rover, Camaro 2SS 6MT Join Date: Oct 2009 Location: Portland, OR Posts: 213	Dang, thanks for the heads up. __________________ CGM 2SS/RS 6SM . No muff.

10-14-2009, 06:19 PM	#6
Jferrell88 Drives: black 2ss/rs Join Date: Oct 2008 Location: Proctorville, OH Posts: 751 View My Garage	I think someone pointed this out before, tottally sucks though especially sinceirs the gm exhaust __________________

10-14-2009, 06:00 PM	#3
Scott@Bjorn3D Drives: Kami, 2013 2SS LS3 Luvin Join Date: Oct 2008 Location: Eufaula, Alabama Posts: 6,427	Yeah there was another car where the dealer did not center it and it did that. Yours also are sitting a little farther back in than mine.

10-14-2009, 06:25 PM	#7
brandotron I am the internets. Drives: dangerously Join Date: May 2009 Location: Redondo Beach, CA Posts: 12,571 View My Garage	Ouch! __________________

10-14-2009, 07:10 PM	#8
JM10 Se habla español Drives: 2010 Camaro SS/RS VR Join Date: Jun 2009 Location: Arizona/Sonora Posts: 605	You´re not going to believe me, but I have an appointment with an exhaust shop in 30 min. I got my magnaflow installed yesterday but tought that the exhaust tips where sticking out of the diffuser to much (about 1") This is the look I want: (Soloperformance)

10-14-2009, 07:13 PM	#9
Indpowr Account Suspended Drives: Corvette C6 Join Date: May 2008 Location: Florida Posts: 6,959 View My Garage	It looks like they installed the exhaust to fair back. Sorry for the issues.

10-14-2009, 10:58 PM	#12
franknbeans Whipped Drives: 2010 CAMARO Join Date: Sep 2008 Location: Pittsburgh-ish - PA Posts: 4,216 View My Garage	yeah the exhaust is way to far back. . . thus the melting... it is suppose to stick past the plastic. __________________ Car of the week 7/7/14

10-15-2009, 01:18 PM	#13
Styffydawg SSinister Drives: Ram SS/T + Murdered Out 2SS/RS Join Date: Sep 2009 Location: Wilmington NC Posts: 82 View My Garage	Just to play devil's advocate here but if you had gotten it done at a speed shop and not at the dealer, I wonder if they would have allowed the tip to sit so far back? __________________ SSinister

10-15-2009, 01:25 PM	#14
Dr Jkel and MR. HYDE Drives: 2010 2SS RJT/BLK 6Spd Man Join Date: May 2009 Location: Oxford, Alabama Posts: 4,375	Please excuse my ignorance, what exhaust did you buy, I see that they sell two different kinds and I know one is " Off road". Did they do anything else to you car besides the exhaust, and lastly if you don't mind, how much did they charge you? Thanks

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