SonicBlue05GT

i'm not exactly sure what i'm hearing since i'm new to X-Pipes.

it almost sounds like a leak.. it's a hissing noise, but I can't find any leaks. is this the air crossing at the X that I'm hearing?

it doesn't sound bad, but I don't wanna be running a leak

I have the Bassani X-Pipe with high-flow cats if that matters.

howarmat

yeap...my o/r h is the same....from my understanding it is because the airflow has increased and there is no leak.

SonicBlue05GT

interesting. see i don't remember this sound with my o/r H.. but i'm getting it now

howarmat

you should have even more airflow with your current setup than before

Bluestar

It must have something to do with the Cats, 'cause I have the FRPP X-Pipe, and I don't hear anything like that.

SonicBlue05GT

i'm double checking tomorrow around the headers. anyone else???

onederful100

at idle there is a slight sound that is like a leak, but at more rpm's it is drowned out by the loud a$$ exhaust sound!

SonicBlue05GT

yeah that's what i'm getting. the hissing is loudest around 2500RPM. it pretty much goes away after that

SonicBlue05GT

the noise kind of sounds like this when the exhaust is coming down in this vid:
http://www.youtube.com/watch?v=9_51B...eature=related

i'm starting to think it's normal??