my mechanic had told me with all the mods i have i would for sure 100% fail the smog test only. but of course most mechanics know a crooket place, so he told me for $200 he would all i needed was to give this place my miles and the DMV documnet they sent me and i would pass. so now i can go ahead and take of my cat and just have straight pipe 2'25in piping with performance muffler. i already have the stillen header. what do you think? sounds good?