what else are you planning on doing to your car? nice big hp turbos are gr8, but if you dont have a good pump, injectors, ecu, front mount, depends on what turbo, custom manifold. and maybe lowering the compresion, if you already have this stuff i would go 2535 or 3040.good for 250-270rwkw+, if you dont have this stuff i would just get your old one high flowed from gcg. good for 230-240rwkw