Well Ive just had my tubular headers come off and had ported n wrapped oem headera put on, what a diff, the spool has definitely started coming in earlier, love it. Im guessing a map tweak would be required? To get the best out of them?

 

id think so bud, ive got the very same thing sitting to go on my wagon along with induction and a decat and ill be getting a map tweek for sure.

 

Well im putting a fmic on mine soon so I thinks it wise to get it tweaked at once