fuel pump. clutch. plan for exhaust. silicone couplers. t-clamps. go to g2ic.com and their turbo guide. it will help. this is not something you jump into. plan for as long as becomes necessary. just make sure you tune it correctly, that is the most important thing trust me. anybody that knows boost will give you the same advice. brakes and suspension are a good idea with the amount of tourqe a turbo ls puts out also.