How would a PR CAI, Cattman S/S Y-Pipe, Stillen B-Pipe, and Apexi W/S Catback sound. Im looking for the most performance and less sound, and I have heard the APEX'I is the most quietest Catback out there.

 

loud

 

Keep your stock muffler and get a custom b-pipe, it'll be quieter and you'll only lose 1 or 2 hp. The Y and B pipes are what really free up power, not the muffler.

 

Well the A'PEXi cat-back has a b-pipe already..hence the name "cat-back" but I'd say that it's not loud at all...I basically have that setup right now, except I have the JWT intake (just as loud as the CAI). The cat-back keeps the car VERY quiet for having a fully modified exhaust. The intake is what's loud...and it's not loud until you really get on it.