sup everybody, i'm new to this site but from what i've read you all know your shit. so here's the thing, i've got a 89 turbo. i'm bout to put a 3" downpipe 3" test pipe and 3" cat back i/c hard pipes, hks ssqv bov and a blitz intake and probably shim the wastegate a lil to about 12 psi. I'm trying to get 300 to the wheels. A buddy of mine says it can't be done. My question is, is there anything else i can do to get the 300hp mark and prove my buddy wrong?