I'm gonna be fitting a gt2871r to my golf soon with 550cc injectors it's currently running 270bhp. 1.) wondering what power I can expect to get? It has a agu head but has tt225 internals so forged pistons etc.... Is it possible to have a launch control map as it's also had a 4wd conversion so won't just be spinning it's tyres for a trip to kwik-fit any idea's what's best ?