its somewhere around 2-6 more torque with off road pipes compared to catted x pipe. And from all the youtube videos i have seen i think the off road pipes make your exhaust pop more or sound more raspy thats why i went the catted x pipe route. I actually have to turn off my o2 sensor in the cat cause the headers make the car run more rich and burn out the o2 sensors quicker.
AirRaid CAI, BBK Ceramic LT Headers, BBK Catted X Pipe, Borla ATAK, MPT 93/97 Tune, Steeda LCA's and UCA, Steeda Relocation Brackets, 373 gears, WaveTrac LSD, Dynotech Driveshaft. Prothane Motor Mounts, Whiteline adjustable panhard bar & brace.Ground Control Coilovers with Koni's custom valved. Coming soon Circle D 3800 Stall and Lone Wolf Intake Manifold.