Hi guys, iv got an R33 GTS-T series 2 its stock as a rock with a CatBack and Splitfire coilpacks, i want to put a FMIC, Modify the stock air box, new fuel pump and get it NISTUNED with a boost controller running like 10-12psi......
should i be getting a bigger dump-pipe/front-pipe/cat or would i not worry about it untill i go bigger turbo and cams and blah blah blah..??
Thanks!!!!