a guy at my work has a 01 wrx and has spent heaps , he just got the us 2.5l block , forged pistons , big turbo etc etc . spent heaps
it dynod 180 rwkw , 500nm torque and ran a 13 something !
ive seen gtst's with gt30s put down 300rwkw+ and 700nm of torque on std internals
disapointing stuff . it is quite a quick little car at mc so it has its place , but a decent gtr or even a tough gtst would eat it up and a big circuit , street or drag .