hey guys i know there are tons of threads about whole installing test pipes on stock exhaust / aftermarket exhaust.
i used to have TurboXs test pipe installed with my "custom exhaust" it sounded horrible.. like too much hissing sound and rattling and raspy sound..
i know raspy sound is supposed to be "NORMAL" but i dont know about hissing and rattling sound.
so i changed my exhaust to Invidia N1 exhaust... it sounds alot better but still have a bit of hissing and rattling noise.
i added the gaskets and all but still have problems..
is there any WAY to remove hissing/rattling noise by any chance?
sorry for the long story but i really aprreciate for your help.

 

When I removed the heat sheilds above the cats it cleared the rattle sound right up on my z. Give it a try and I hope it helps.

 

thank you for your time and reply.
so u removoed rattle sound by removing heat shield?

 

Yep, I thought it could be so many things causing the rattling I was dealing with but since there can be more vibration with higher flowing exhaust components my shields made a very distinct and annoying rattle. I was able to remove the shields without removing my high flow cats. It could be tighter and more difficult depending on your test pipe size, if anything you'll just have to remove your test pipes to get to them. Heck, don't forget to check your licence plate if its causing any rattling. Ihave heard of a story of how someone looked and adjusted everything and it ended up just being his licence plate! ha ha! This might not fix you problem comletely but I do feel it should help.

 

Are you talking about the Header heat shields?

 

Thanks Jarrod. i shuold try that and lets see wut happens.
thank you for your time.
it sounds like the sound is comign from my y pipe though.. not too sure.. but i will check it out and let you know thanks :]

 

I was talking about the shields about a inch next to the cats^