! 
How loud??
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,363
Likes: 8
From: Scottsdale, AZ
How loud??
Anybody have/or know about these(?):
GM "Performance Exhaust" that Gene Culley is selling?
He has no sound clips.
GM "Performance Exhaust" that Gene Culley is selling?
He has no sound clips.
Last edited by HarleyB; Apr 16, 2008 at 10:23 PM.
Le Mans Master
Joined: Nov 2007
Posts: 6,419
Likes: 200
From: Wilkes-Barre Pa
When I got mine there were 2 versions. The one exceeded corporate decibel limits and may not be legal in all areas. I have the loud one. It has a nice rumble at idle but can get pretty loud with throttle. I also get a lot of popping when coasting.
Race Director
Joined: Mar 2007
Posts: 11,081
Likes: 29
From: Murfreesboro TN
Do you have an auto or a manual?
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,363
Likes: 8
From: Scottsdale, AZ
||--Genuine GM Performance Parts Exhausts--||
19172324 – Peformance cat-back exhaust system – 1250.00
19172326 – Off road cat-back exhaust system – 1250.00
Shipping is $55.00. Please call for availability and/or to order.
Both exhausts come with welded on, round, angle cut tips (as shown in pic)
The tips cannot can be changed out as in the previous GM exhausts.
These exhausts are for LS2 or LS3 powered Corvettes!
The performance exhaust is normally a less aggressive sounding and the off-road is normally a bit more louder/throaty. We currently do not have sound clips available.
Picture here!
http://www.gmpartshouse.com/accpics/19172324.jpg
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Le Mans Master
Joined: Oct 2006
Posts: 5,277
Likes: 6
From: (d/fw) tx
well according to Gene's ad:
||--Genuine GM Performance Parts Exhausts--||
19172324 – Peformance cat-back exhaust system – 1250.00
19172326 – Off road cat-back exhaust system – 1250.00
Shipping is $55.00. Please call for availability and/or to order.
Both exhausts come with welded on, round, angle cut tips (as shown in pic)The tips cannot can be changed out as in the previous GM exhausts.
These exhausts are for LS2 or LS3 powered Corvettes!
The performance exhaust is normally a less aggressive sounding and the off-road is normally a bit more louder/throaty. We currently do not have sound clips available.
Picture here!
http://www.gmpartshouse.com/accpics/19172324.jpg
||--Genuine GM Performance Parts Exhausts--||
19172324 – Peformance cat-back exhaust system – 1250.00
19172326 – Off road cat-back exhaust system – 1250.00
Shipping is $55.00. Please call for availability and/or to order.
Both exhausts come with welded on, round, angle cut tips (as shown in pic)The tips cannot can be changed out as in the previous GM exhausts.
These exhausts are for LS2 or LS3 powered Corvettes!
The performance exhaust is normally a less aggressive sounding and the off-road is normally a bit more louder/throaty. We currently do not have sound clips available.
Picture here!
http://www.gmpartshouse.com/accpics/19172324.jpg
cool. i stand corrected. it's still the same thing as borla stingers though.
Pro
Joined: Mar 2008
Posts: 738
Likes: 0
From: Vancouver Island British Columbia
I have the performance version on mine ('07, Z51, 6MN) and really enjoy the sound. There is a burble at idle and a mild rapping on deceleration. The system is loudest when accelerating but suprisingly quiet at a steady speed/rpm. I'd recommend the performance system to anyone. By the way, the tips on mine are clamped , not welded.
The dealer (Andy Mohr Chevrolet, Plainfield, In.) quoted the part number as: GM 1780884.
The dealer (Andy Mohr Chevrolet, Plainfield, In.) quoted the part number as: GM 1780884.
Burning Brakes
Joined: Apr 2001
Posts: 773
Likes: 107
From: NC
My neighbor has the quieter of the two versions on his 08 Z51 and does not like them. He wanted to trade straight across for my stock ones and after spending an hour in his car I declined. There is a bad resonation at idle while in drive and then it comes back at certain RPM's while cruising. As soon as you come off of idle when you want some noise, it gets very quiet. He had the entire hatch Dynomatted (sound deadening) which helped some. He did not save his stock exhaust and the dealer has agreed to give him the stock exhaust off of the next one that they do. If he decides to sell them, I will post something on the forum for him.
