stock for stock the cobra kills, but intake/catback/ and a tune can put the sti right next to an exhaust only cobra......if its a bigger turbo then he'll likely need a bigger blower.....
Not true....who has seen the video of the white gt35r sti Barely pulling away from a bonetock c5 zo6. I think a 460 rwhp cobra should be enough to handle an aftermarket turbo STI