Tips for finding an exhaust leak

Originally Posted by chops

i cant believe no one else has said this. you dont have an exhaust leak. its simply the engine hissing. look it up. "vq37 hiss"

its simply a byproduct of removing the factory catalytic converters. its there when you replace with test pipes, highflow cats..long tube headers. you name it. the ARK high flow cat's attempt to fix this with a resonant chamber. look it up!

heres the ARK HFC's:
Introducing : ARK PERFORMANCE Inc RSPEC Hi FLOW CAT 370z/G37

Originally Posted by cheshirecat

The op mentioned in post #7 that he was getting it on acceleration also, which is not typical when referring to new exhaust hiss.

I personally don't feel it's an exhaust leak, but from the OP's description, it sounds like it is not the typical post-cat removal hiss.

Hopefully he will figure it out and give us an update.

Originally Posted by chops

i have a high pitched hiss on acceleration. sounds like a rock in a tin can. this is also attributed to the HFC. look it up!