a standard wrx gearbox from a classic will only take up to 320bhp? and thats pushing it? so no power shifts?

 

They are pretty useless at taking the power. I think its more torque that bhp that kills them to be honest.

Im only running 300 brake and on my 4th standard box. If u want to run more power you might want to consider an upgrade instead of replacing the box every year or so.