Originally Posted by rockd
The stock exhaust system comes with two pairs of catalytic converters and one pair of resonators. The Sosi X-Pipe removes the second pair of catalytic converters and the resonators.
How much more volume are you looking for (percentage-wise)? Just removing the secondary cats might not get you there...
Not that much more volume, maybe 20%? The Bastuck is pretty quiet, but I like the lack of drone. I'd like more volume in the upper frequencies.