Anybody know any aftermarket y-pipe statistics (i.e. - sound, hp, etc.)? How bout a high-flow cat in conjunction with the y-pipe or even seperately? Anybody have any inputs?

Thanks

 

I think a y-pipe can add around 10-15whp...but i could be wrong so don't quote me. As far as noise it should just be a little louder than stock.

 

i have a straight pipe with everything else stock....exhaust sounds the same as if i had the cat in it....it'll prolly be louder with a y-pipe in it....

 

y pipe is best if you have a intake..
with intake 15-18hp
w/out intake 10-15

no sound at crusing speeds... nice rumble when u floor it..
high flow cat dont do jack...
stock cat is fine
and a straight pipe dont do anything either ..

however y pipe does make your muffler sound like the 350z a little