hey, in the u.s. my car came with two catalytic converters and a big muffler. i removed all the cats and replaced the muffler with a better flowing resonator. i'm really surprised how quiet the car still is but the turbo itself acts as a muffler and also quiets the exhaust. if i were u i would turbo it first thing and while ur doing that redue the entire exhaust with either a dual 2.5" or a single 3" pipe. get rid of all the midboxes cuz they are very restrictive and all they do is kill ur power
damn! that sounds mint. do you know if you take out ya mid box would it make it loud? i have an st170 and wanted to start doing it up. they aready come with a s/steel pipe but mid boxes all over it. help me out at all?
im guessing over seas the midboxes are from the factory for emissions puposes?
FocusTurbo23 2 years ago
hey, in the u.s. my car came with two catalytic converters and a big muffler. i removed all the cats and replaced the muffler with a better flowing resonator. i'm really surprised how quiet the car still is but the turbo itself acts as a muffler and also quiets the exhaust. if i were u i would turbo it first thing and while ur doing that redue the entire exhaust with either a dual 2.5" or a single 3" pipe. get rid of all the midboxes cuz they are very restrictive and all they do is kill ur power
FocusTurbo23 2 years ago
damn! that sounds mint. do you know if you take out ya mid box would it make it loud? i have an st170 and wanted to start doing it up. they aready come with a s/steel pipe but mid boxes all over it. help me out at all?
dragondevil09 2 years ago