You need a complete intake from a 325i, make sure you get the intake boot coming from the AFM, the throttle body complete with all brake booster vacuum lines and valves, the fuel rail with injectors and fuel pressure regulator and of course the manifold itself with all i gaskets. You also need the i chip, i cam and the dual valve springs. Don't rev that engine above 6000rpm without a stronger crankshaft (like the one from a 524td). Good luck. Remember this only works for the 1988 super eta engine. Did I forget anything funfer?