Originally Posted by
syfi
Mick, I replaced the rear cats and "H" pipe with a stamped "X" pipe, which gives a much freer flow and really cuts down on the interior resonance/drone. Bought mine here: Fantastic prices! (I used the 2.25")
Results for X-Pipes
How much lower in timber did your exhaust note get? My plan is to replace the CATs with a Y pipe 2.25 into 3, then through a 3 in by 12 resonator to the muffler, bypassing the stock resonator which will make a unique paper weight.