Should I get a catless "race pipe" downpipe (from Perrin most likely do they make a good one?) or one with a cat? How loud will it be with carbon Ti, and perrin up pipe? No check engine lights right?

 

WOW, you're just FULL of questions! HAHA Ok....... your HKS Carbon/Ti will be loud, but shouldn't be AS loud as the Nur Spec. The reason I say this is because with the Perin Downpipe, and Perrin uppipe, you're running NO CATS.... so you'll be a little louder than me, but not by much. CEL..... well...... you'll get one, if you don't do the 2.2 Resistor Mod (at least I think you will) Look that one up, ok? I don't know enough about it to tell you anything more.

Blue

 

Interesting......... See........ told ya I didn't know enough about the resistor Mod. Thanks illmatic!

Yeah, I suppose you're right, now that I think about it. My friend is catless and hasn't thrown any CELs either.

Thanks for clearing that up.

BLue