What size tip should I use?! (post pics if u got em)

SON240sx Automotive
21

I would say something stupid but ill save that for another thread soooo… look at acidz build thread his nur spec r is 4.5" and its a s14…

22

Dual 2.5" BRM Stainless steel with Catco high flow cat and 22" resonator.

Don’t be a ricer with 2.5" piping and a 5" tip…

23

And because I’m feeling generous today:

http://forums.nicoclub.com/zerothread/48608