Gas Valve Actuator 40 14psi Black Elite 2500 and the turbine housing is

and the turbine housing is not the limiting performance factor

TS-0553-1202: Standard Version (Up to 5psi Base Pressure)

giving you more precision over boost management than ever before

38mm GenV UltraGate38HP - TS-0551-1312

This is a bolt on fitment for various Mazda 2

Gas Valve Actuator 40 14psi Black Elite 2500 and the turbine housing isTurbosmart GVA Series is a spring and diaphragm style pneumatic actuator which operates a mechanical valve. The reference air acts upon a diaphragm and opposing spring to actuate the valve, which is supplied as a modular system designed to be used in a host of custom, industrial and automotive applications. The GVA series actuators include Milspec Diaphragms and can be specified with a range of base springs. The V band mounting system can be adapted