How do i stop this thumping?

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Nov 9, 2003 | 03:15 PM

Knowklew

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Registered User

Joined: May 2003

Posts: 897

From: Bartlett, IL

How do i stop this thumping?

Well i was at the track today and i have an SLP ypipe and SLP Loudmouth exhaust. The problem i have is on hard launches the ypipe will slap the underside of the car.....How can i fix this?

Nov 9, 2003 | 06:57 PM

Knowklew

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Registered User

Joined: May 2003

Posts: 897

From: Bartlett, IL

ttt...

Nov 10, 2003 | 04:46 AM

Camaroman_94

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Joined: Jun 2003

Posts: 78

From: KENTUCKY

Would like to know myself. My car has done that also. Mine also
has a vibrating sound coming from underneath at idle. I'm thinkin about going to a muffler shop??

Nov 10, 2003 | 08:23 AM

CODY BEHNKE

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Joined: Oct 2000

Posts: 711

From: Nebraska

You need to lower the y-pipe, it is either hitting on the drivers side or at the y-connector. When I installed mine I had the same problem. Loose it up and pull it down a little you will most likely need to bend the crossbrace down also.