Jeezus

iTrader: (4)

Hello again 2nd gen guys! Got a question, How much Hp does the RB turbo downpipe give over a stock dp? I was searching around and found a lot of stuff about it and stage 4 turbo's and whatnot, but no HP quotes... Thanks!

PvillKnight7

iTrader: (16)

it wont give much unless you upgrade the entire exhaust system. ie: replace cats with straight pipe or gut them out. better flowing mufflers and 'y' pipe

Jeezus

iTrader: (4)

This is going on my 82 FB, so I will be running a 13b street/bridge with S4 turbo, 2.5" piping with Borla Pro SX presilencer and Mazdaspeed Protege Muffler. Basically what is in my sig.

Jeezus

iTrader: (4)

ttt

Jeezus

iTrader: (4)

Bumpith, wondering if I go stock and it wont make a difference

MidnightOwl

Racing Beat claims their whole exhaust adds like 25 hp over stock, but I don't think the DP would change much, maybe like 1 or 2.