hey guys thanks for your help, I'm really not chasing huge horsepower,just enough to draw some smiles. in my travels i see a ute in qld that has had it done, he seems to have done alot aftermarket wise but hasnt touched the engine internals or pistons and things at least (hes done injectors, fuel pump, t4 turbo etc.) He had the exhaust ports ported or something to reduce compression, is this viable and a costly exercise? once again I'm sorry its off topic of corollas just waitn for my toymods membership to come through:)