need new pistons, possibly rods and crank depending o how muc boost you wamt...also sleeves are a good idea..bigger injectors fuel rail, fuel pressure regulator, cold firs spark plugs are a good idea too, lowered compression, i think maybe retard the timing a little also? umm ecu tunning...i think that's about it..ask Mike...aka Mr.2jzkidd...also what is the engine code for God sake