GXP downpipe

Reply Subscribe

Thread Tools

Search this Thread

Dec 11, 2007 | 02:10 PM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

GXP downpipe

I just had a downpipe installed on my GXP (wbs weld in). Now under acceleration i get a whistling type noise...are you guys getting the same?

Dec 11, 2007 | 08:07 PM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

i was told it is because it is a single wall instead of a double wall......exhaust wrap should help....can anyone verify that?

Dec 12, 2007 | 09:07 AM

burbanman

On The Tree

iTrader: (12)

Joined: Mar 2002

Posts: 126

Likes: 0

From: jawja peach land

Quote:

Originally Posted by 07gxpgray

i was told it is because it is a single wall instead of a double wall......exhaust wrap should help....can anyone verify that?

That is my understanding...... the "double layer flex" supposedly fixes the whistle sound, however, I was talking to someone with at GTP(superchaged 6) who said he has the double wall flex and still gets some whistle.

FWIW, my DP is from Hogan, double layer, and does not whistle.

Dec 12, 2007 | 09:50 AM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

Do you think the exhaust wrap will help?

Dec 12, 2007 | 12:08 PM

cherrygxp

Launching!

Joined: Nov 2007

Posts: 225

Likes: 0

On my GTP i noticed the same thing so i wrapped it and it made it a little better, didnt really bother me but im sure if you wrap it good it wont make any noise.

Dec 12, 2007 | 12:23 PM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

great thanks....WBS is saying I only need to wrap the flex area!

Dec 12, 2007 | 02:48 PM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

exhaust wrap worked...thanks guys!

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Dec 13, 2007 | 10:33 AM

07gxpgray

Thread Starter

Launching!

iTrader: (7)

Joined: Nov 2007

Posts: 271

Likes: 1

From: Peoria, IL

Quote:

Originally Posted by BuffaloSS

I'm sure there was a great reason for posting two identical threads within the same section...but we're all glad to hear that your problem was fixed twice!

i just deleted the other one......i had it posted in the general LSx questions area......a mod must have moved it.