13bmaniac

iTrader: (5)

want to know what will perform best in a set up of 400 to 450 hp single 7, already own a greddy ti exhaust tha is a little bigger than 3" but dont know if a bigger pipe will give me best result,but i also been told that i will have more lag etc.
let me know what you guys think

SiKoPaThX

iTrader: (2)

More lag? I don't understand that. Correct me if I'm wrong, but wouldn't the more free flowing the exhaust is, the faster the turbo is able to spool?

Jay7 Nyc

iTrader: (3)

Greddy TR exhuast is 3.75in vband and comes with a mid pipe thats 3.75in vband to a 3in flange. Rx7.com has them, I got mine with the greddy t88 kit so everything is 3.75in with vband.. Its the currect exhuast Ari uses on his race car.

TT_Rex_7

https://www.rx7club.com/spec-tuning-154/how-size-matters-478915/

Scroll through the second post till you find where it talks about backpressure.

-Alex