I took mine off and am running the paper filter just because of what everyone was talking about. Left it off just for the sound. My opinion is it sounds great at WOT. I have my K&N on order. Should be here this week some time. Eventually, I wanna fab up my own lil heat shield design and actually get some hp and not just be a placebo.
12' Ox White SE Sedan 5spd 1/4 mile-15.8735@90mph
Mods: FSwerks Race Exhaust, K&N Typhoon SRI, MS3 CP-E RMM, Tuned By: Tom, Steeda STS, Eibach Sportlines, Steeda Rear Sway Bar and Anarchy Motive GM Shiftknob