hey guys.. i heard that for my setup if i get headers and highflow cat (or straight) i wont have enough backpressure... i have a greddy evo on now and im thinkin itd be ok to do so, but what are your opininons?? thx fellow R's

 

with your claimed boost........i reccomend the most free flowing exhaust you can find

 

Less backpressure you have = better.

 

I think this link may help understand backpressure a little better. Hope it helps with your question.

http://www.automotivetech.org/showth...?threadid=6283

 

Don't believe everything that you hear.

There's some discussion on the matter here https://honda-tech.com/zerothread?id=185545