just got the new exhaust. when i let off the gas i hear a hissing/air sucking sound. it is almost like a blow off valve, which I only can wish that is was...

any thoughts?

 

a lot of aftermarket exhausts make that sound. what new exhaust did you get?

 

Fast Intentions HFCs and Intimidator catback

 

I don't have those particular pieces, but with my Berk HFC's and ARK Grip exhaust I have noticed the same sound, and have heard it from other people's as well. Nothing to worry about

 

Thats what we get for changing s*** up. but it's not as bad as the noise from the aftermarket clutch (JWT).. As for me they both bug me, till i get on the pedal then all is GOOD. differant set ups make more or less noise mine is only on decell.