This is still happening to me, since the install last summer.

Cattman SS Y-pipe -- really no major noise when in drive or park, even under heavy acceleration.

HOWEVER, in reverse, there is DEFINITELY added noise -- almost like a leak and rattle sound both. All nuts are tight. Seems to fit fine, no gaps at all.

If it's a leak, why only in reverse?

If it's a rattle, why only in reverse?

I don't get it.

Help!

/aac

 

header wrap it

 

Wrap the y-pipe? or the headers? What parts? What to use? Someone told me not to wrap the SS y-pipe, I forgot who.



/aac

 

use header wrap on the flex section. should help a bit

 

Thanks dude, I will try that when it warms up out there. Hey if anyone else has input or similar experiences on this please post. It's really buggin me.

Thanks !

/aac

 

You may want to look under the car and check for clearance problems. I never had an issue with noises with my stillen pipe. But then again, some people say they don't have a problem with their cattman pipes.

ZuM

 

Check to make sure the y-pipe is still intact. Then make sure your cat is still good. Hope no blocks blew away. Last thing which many guys do is use wrap on the flex section. This eliminates the hissing noise.

 

The pipe is fine, it's been doing this since the day I put it in. It's more of a vibration/rattle and some leaking gas sound when in reverse.

/aac