Originally posted by happasaiyan
actually, the turbo is fairly small. the engine can handle more boost, but like always, you need to tune it to do it safely. im pretty sure (based on pure speculation) that the engine will handle ~450 pretty safely. the trans is a beast, also. wrc racers have swapped out their dog box trannies for the sti 6spd. cant wait till the good stuff comes out (engine management and bigger injectors).
Where in the world did you hear that a WRC car would swap out a dog box for an STI tranny? Maybe the salesperson that sold you your car? There was even a quote IIRC on apexjapan.com from a Subaru engineer quoting that they aren't sure of the STI tranny's reliability over 400hp.