WEll i have bbk headers to the cats but then nothing from there? lol when i bouhgt the car thats how it was I live in cali so i need to worrie about smog but i want as much hp as possable. Can i go long tube headers and what is the hp difference of long and short? and i want to go 3 inch all the way and would a catted x pipe be a good ivestment just give me as much input as possable! thank you