Confusion

what would be best to get most hp out of our exhaust.

I know there are 3 cats, which cat should I delete.

I'm planning to keep resonators and mufflers on, but I heard it's the piping where the restriction is, should I get bigger diameter piping as well. Did anyone do anything like this, experienced any good or bad? Feedback will be appreciated.

t70 supra

iTrader: (-4)

look up dori crazy he got a complete exhuast from bigwave sc i also will have a complete exhuast with a sports header back soon.

but for a great exhaust u will need alot of back pressure and minimal bends to make great power the best piping is 2.25 or 2.5 inch piping anything over that will be over kill

Confusion

well I dont think I'll be boosting anytime soon, I just wanna know which cat i should delete, and I wanna leave in resonators and mufflers if it doesn't restrict much just so my car doesn't sound like a fart can, 2.25 or 2.5 piping? does it make a difference, probably planning to BFI later on as well

ashtray

iTrader: (12)

what your boosting? Im sure those numbers are good for stock, how about turbo?

t70 supra

iTrader: (-4)

i dont have cats at all but my car has hell tq for a na still collecting parts for my swap

ashtray

iTrader: (12)

i think im gonna get a custom made straight pipe turbo back starting with 3 inch then going to 2.5 all the way to the mufflers. is the Y bend going to dual exhausts restrictive?