Turbosmart IWG75 14 PSI Black Internal Wastegate Actuator - Mitsubishi EVO 6-8 - TS-0601-1142Turbosmart Upgraded Wastegate Actuators have been developed to provide the maximum possible boost response for your factory frame turbocharger. The Turbosmart IWG75 Series of upgraded Actuators benefit from an increased Working Ratio over the factory equipment resulting in improved boost response throughout the RPM range. This Improved working ratio is achieved through an increase to the effective surface area of the diaphragm & revisions to the