I have a 2010 sedan with the stillen catback and i looking for either test pipes or hfc. I need to know which has less rasp and good gain wise

 

Fast Intentions HFC's have zero rasp and gains all the way throughout the RPM band. I'm selling mine with just under 2000 miles on them, so PM me if you want. I'll give them to ya for way less than they cost. I took them off because it was a bit too loud for my taste, but I noticed a decrease in power right away. Even in the lower revs, they add power.

 

Wait... Nevermind... I forgot about the part where you have a sedan and I have a coupe. They're gonna be different. Nonetheless, you can't go wrong with either Fast Intentions or Berk.

 

Yea but hfc and tp are the same for coupes and sedans

 

My bad, lol. I've sent you the PM.

 

berk!

YouTube - ‪G37x Sedan with Berk HFC‬‏

 

^ biggest fail video ever

 

I agree... sounds stock IMHO

 

do a comparison if u want, i feel and hear the diference:

YouTube - ‪G37x Sedan Stock Exhaust‬‏

 

yea with the stock video there you can hear the difference. The car with HFc's sounds more like the coupe.

 

^ thats what i was going for, and i got it! ;-D