GXP Owners Beware... Check all 4 exhaust tips - Pontiac G8 Forum: G8 Forums - G8Board.com
Exhaust Tech Headers, Catbacks, Mufflers, lack of mufflers

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post #1 of 28 (permalink) Old 07-12-2009, 02:59 PM Thread Starter
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GXP Owners Beware... Check all 4 exhaust tips

I have a White Hot GXP with 2100 miles on it and just discovered I have an issue with my exhaust tips. 3 of them are correct but the inner tip on the drivers side is a GT tip. The GXP tips are 3" but this one is 2.75".

I went to the dealer lot last eveing and verified the problem. The GXP in stock has 3" tips all around. I am going in tomorrow to notify them of the problem.

I'll keep everyone posted on the outcome. I'll try to get a photo uploaded tomorrow for all to see. Once I discovered the smaller tip, it bugs the heck out of me.

Check your GXP's. You may have the same issue.

GONE 2011 Best In Class Winner, Mild Modified G8 GXP, WH A6 #116... Livernois Dyno Tuned|SOLO HFC's|BORLA Catback|Roto-Fab CAI, Radiator & Fuse Box Covers|BP PS, W/W Res. & Strut Mount Caps|V6 Tail Lights|White Emblem Overlays|SharkFin II|G2 Red Calipers|Solar Gard 50/35/20 Tint|Leather Console Cover|SS Engine Hardware|GM 2009.5 Atari Gauges|Holley Satin Valve Covers|Camaro 20's & Nitto NT555's|Elite Engineering Catch Can|Taylor 10.4MM Spark Plug Wires|SS Fuel Supply Line

Last edited by 1of1828; 07-12-2009 at 03:03 PM.
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post #2 of 28 (permalink) Old 07-12-2009, 03:19 PM
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Do you have any pics? I'm kinda curious about that.
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post #3 of 28 (permalink) Old 07-12-2009, 03:33 PM
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Weird.

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710rwhp/742rwtq
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post #4 of 28 (permalink) Old 07-12-2009, 07:50 PM
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Weird.
yours are fine i looked

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post #5 of 28 (permalink) Old 07-12-2009, 07:54 PM
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So 3 are GXP tips and 1 GT tip?!

Sounds like the factory muffler guys just came back from the bar when they made your muffler!!

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post #6 of 28 (permalink) Old 07-12-2009, 08:06 PM
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yours are fine i looked
Ballin'

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post #7 of 28 (permalink) Old 07-13-2009, 12:05 AM
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How does that even happen? The GT tips share an outlet from the muffler, while GXP tips have dedicated outlets from the muffler.

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post #8 of 28 (permalink) Old 07-13-2009, 05:34 AM Thread Starter
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Seeing is believing!

Here is a photo of the tips in question. Drivers side inner tip... smaller diameter. Off to the dealer around 10:00.

http://picasaweb.google.com/jjw460/G...88914404924882

GONE 2011 Best In Class Winner, Mild Modified G8 GXP, WH A6 #116... Livernois Dyno Tuned|SOLO HFC's|BORLA Catback|Roto-Fab CAI, Radiator & Fuse Box Covers|BP PS, W/W Res. & Strut Mount Caps|V6 Tail Lights|White Emblem Overlays|SharkFin II|G2 Red Calipers|Solar Gard 50/35/20 Tint|Leather Console Cover|SS Engine Hardware|GM 2009.5 Atari Gauges|Holley Satin Valve Covers|Camaro 20's & Nitto NT555's|Elite Engineering Catch Can|Taylor 10.4MM Spark Plug Wires|SS Fuel Supply Line
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post #9 of 28 (permalink) Old 07-13-2009, 05:36 AM Thread Starter
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Maybe I should keep as is. Then I might be 1 of 1. NOT!!

GONE 2011 Best In Class Winner, Mild Modified G8 GXP, WH A6 #116... Livernois Dyno Tuned|SOLO HFC's|BORLA Catback|Roto-Fab CAI, Radiator & Fuse Box Covers|BP PS, W/W Res. & Strut Mount Caps|V6 Tail Lights|White Emblem Overlays|SharkFin II|G2 Red Calipers|Solar Gard 50/35/20 Tint|Leather Console Cover|SS Engine Hardware|GM 2009.5 Atari Gauges|Holley Satin Valve Covers|Camaro 20's & Nitto NT555's|Elite Engineering Catch Can|Taylor 10.4MM Spark Plug Wires|SS Fuel Supply Line
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post #10 of 28 (permalink) Old 07-13-2009, 07:40 AM
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That's messed up!

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post #11 of 28 (permalink) Old 07-13-2009, 07:45 AM
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Quote:
Originally Posted by 1of1828 View Post
Here is a photo of the tips in question. Drivers side inner tip... smaller diameter. Off to the dealer around 10:00.

http://picasaweb.google.com/jjw460/G...88914404924882
Wow, don't know how that happened but I laughed when I saw that. Definitely one of a kind.

Also, nice plate haha.
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post #12 of 28 (permalink) Old 07-13-2009, 08:05 AM
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I thought you were out yo mind, but that pic is definite proof. WOW, how does that happen????

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post #13 of 28 (permalink) Old 07-13-2009, 10:29 AM Thread Starter
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Just got back from the dealer. They all had a good laugh. Bottom line... they ordered a new muffler for me. Heaven only knows when it will arrive. Hope this episode brought a couple of smiles out there. Drive safely!

jjw

GONE 2011 Best In Class Winner, Mild Modified G8 GXP, WH A6 #116... Livernois Dyno Tuned|SOLO HFC's|BORLA Catback|Roto-Fab CAI, Radiator & Fuse Box Covers|BP PS, W/W Res. & Strut Mount Caps|V6 Tail Lights|White Emblem Overlays|SharkFin II|G2 Red Calipers|Solar Gard 50/35/20 Tint|Leather Console Cover|SS Engine Hardware|GM 2009.5 Atari Gauges|Holley Satin Valve Covers|Camaro 20's & Nitto NT555's|Elite Engineering Catch Can|Taylor 10.4MM Spark Plug Wires|SS Fuel Supply Line
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post #14 of 28 (permalink) Old 07-13-2009, 10:30 AM
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Did they take the old one back? I wouldnt mind experimenting with one.

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post #15 of 28 (permalink) Old 07-13-2009, 10:37 AM Thread Starter
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I am sure they will have to turn it in when they install the new one. They have no idea how long it will take to get another muffler. Glad it is not a drivability issue...

GONE 2011 Best In Class Winner, Mild Modified G8 GXP, WH A6 #116... Livernois Dyno Tuned|SOLO HFC's|BORLA Catback|Roto-Fab CAI, Radiator & Fuse Box Covers|BP PS, W/W Res. & Strut Mount Caps|V6 Tail Lights|White Emblem Overlays|SharkFin II|G2 Red Calipers|Solar Gard 50/35/20 Tint|Leather Console Cover|SS Engine Hardware|GM 2009.5 Atari Gauges|Holley Satin Valve Covers|Camaro 20's & Nitto NT555's|Elite Engineering Catch Can|Taylor 10.4MM Spark Plug Wires|SS Fuel Supply Line
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post #16 of 28 (permalink) Old 07-13-2009, 11:08 AM
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thats wierd !!!

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post #17 of 28 (permalink) Old 07-13-2009, 11:56 AM
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Quote:
Originally Posted by J Wikoff View Post
How does that even happen? The GT tips share an outlet from the muffler, while GXP tips have dedicated outlets from the muffler.
Quote:
Originally Posted by UncleBenny View Post
Wow, don't know how that happened but I laughed when I saw that. Definitely one of a kind.

Also, nice plate haha.
Quote:
Originally Posted by mtolivecracker View Post
I thought you were out yo mind, but that pic is definite proof. WOW, how does that happen????
Obviously, the supplier of the muffler messed up when they built that set. Not too hard to figure out. Definitely a one of a kind though.

mac



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post #18 of 28 (permalink) Old 07-15-2009, 05:19 PM
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I think it looks cool offset like that. Only if the other one were the same. Kinda like the Porsche's quad exhaust.


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post #19 of 28 (permalink) Old 07-15-2009, 06:03 PM
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You just lost approximately 6hp.
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post #20 of 28 (permalink) Old 07-18-2009, 09:53 PM
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Wtf!!!

just checke my GXP and I have the same problem with the same muffler tip!!
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