whats your current setup? and whats your budget?? its not a cheap upgrade going from 200bhp. for a start you are gonna have to find or build a forged bottom end. there is a few on for sale at the moment. so theres 1600-2 grand gone already, but now you have a bottom end ready to take whatever you throw at it. turbo setup depends on your manifold you get, theres a nice wepr 1 forsale on tgtt for £250 sheets, so that will take any turbo using scooby 3 bolt flange. you will be needing bigger injectors, brake upgrades, suspension upgrades, some form of engine management, fpr, bigger flowing fuel pump, lsd box, front mount, etc etc. do some research