First of all obviously the td04 kit of your choice (which should include Manifold, downpipe, extended oil and water lines/ gaskets/turbo, and sometimes a smaller rad, intercooler and piping etc).....you would also need some bigger injectors, preferably a FPR aswell as some sort of fuel controller either a SAFC or an emanage... Set the reg. up so the car runs slightly rich, and then lean it off with the SAFC/Emanage...so if it fails you wont run really lean....just a tad rich.. You may also want to think about a new clutch.. Going TD04 is all very well, but i would make sure you have the brakes/suspension/handling sorted first...more power, with the same brakes and suspension isnt a great idea Rob