I was thinking about getting the MAC flowpaths with either a MAC prochamber or o/r MAC h-pipe. I dont like the loud screaming popping sound of a X-pipe. I cant stand the flowmaster sound either. I'm looking for something deep and bassy like a classic american muscle car.

Is there any sound difference? I heard that the prochamber helps with horsepower more than the regular MAC h-pipe. Something to do with higher RPMs, the prochamber helps the exhaust flow more easier than the H-pipe. Not sure..

BTW I own a 00 mustang GT. This is what I plan on putting on it.

 

The Prochamber will cut the interior resonance down if you run Flows