My questions are. One I am looking to purchase headers to increase some power without ruining my fuel efficiency to much. So been looking to get headers and a catted x pipe. I live in California so I want it to appear at glance legal. I already have a few modes cold air intake 70mm throttle body aftermarket plugs and borla style stinger catback exhaust. Will the headers work on a daily driver? Will they warp etc? Will the catted x-pipe be worth it? I plan to get a flash tuner once all this is in. Any help highly appreciated. Thanks. Mpks92
Forgot to put in that it's an 2002 gt. 110000miles.