0000siir

hey guys,i think this forums really help me

i decided to buy the apexi ws2 cat-back system,and i also want to got the header together,but apexi they dont have header.
which header will be better??
hopeful not toooo expensive..hopeful going best with apexi ws2 cat back..looool

0000siir

and what is the different between 4-1 and 4-2-1,which one is better>??

imported_InVaDeR_HB

4-2-1 power in lower RPM's

4-1 power in Higher rpms

for ur SIR (high reving motor) u may want to consider a 4-1......unless u want to spend alot of money on a nice header, just grab a DC header. They are affordable, abbundant and since u wont gain much anyways (maybe 5hp) with just header/exhaust they will be perfect for you.

imported_GoldBadge

May as well put a High Flow Catalytic Converter on there while you're at it.

92extremehatch

Go to Teknotik and buy the jdm type r style 4 - 1 header with 2.5" collector out, same header as on the jdm type R

Double_B

Where the hell have you been Lee?

I got an Apex'i catback and just got a 4-2-1 header put on. Car runs real nice and the sound is great!