Originally Posted by H_wells3000
my opinion. Headers, up pipe (if 07 wrx is catted), turbo inlet, sti splitter, ebcs, 255 fuel pump, i say go bigger on the turbo by just a tad like a Big 16g, better then VF. you will be boooostin. Your tranny could handle more then 300, avoid launching and stick with the stock clutch and you'll be golden.
2006+ WRX does not have a catted up pipe.
Definitely a great point about the tranny and the clutch. The stock 5 speed can handle 300whp+ (mine has been going strong for a while now). Just avoid launching it and keep the stock clutch so you can be sure it's the weakest link in the drivetrain. My stock clutch has been going strong on this setup for almost a year now with absolutely no issues.