quick question about my exhuast
 

i just noticed that when i accelerate from 5k rpm to 7k rpm it hisses, is that normal? the exhaust i have it F.I 12" res and stillen HFCs

If the hiss occurs during acceleration then it's not normal and might be an exhaust leak. If the hiss is only occurring during decel then that is just a feature of the VQ motor although I can't recall anyone not running TP's or LTH's complaining about it.

That doesn't sound quite right. Get under the car, make sure everything is in place and bolted up properly.

i thought it might of been a exhaust leak, i am aware of the hiss dueing decel. i might take it down to my mechinic to get it checked through