i understand that not having cats is illegal, but thats not my concern. i have an 02 gt and would like to know which is more effecient and powerful, off road x-pipe with or without cats, and how drastic of a sound change is there on a basically stock setup? i currently have flowmasters on the car, don't know what series tho cuz they came with it from previous owner.
now while i do enjoy the sound of a loud and aggressive exhaust, i don't want to get laughed at and hastily denied whenever i goto a brake tag station. (keep in mind though that they're not usually very strict here about cats, but they will check if obnoxiously loud)
if anyone can provide actual output numbers comparing the two, a video/sound clip, or anything else that would greater aid in the selection process, it would be greatly appreciated
