This center cap fits: JR3

cost effective external wastegate with base spring pressure options of up to 50psi

The Corvette C5 / C6 chassis have become increasingly popular in drifting

World’s first butterfly style

CrMo rod ends and sphericals used instead of rubber bushings

VIWG Borg Warner Wastegate Actuator 57mm Diaphragm – 6inHg JR36 This center cap fits: JR3Turbosmart Upgraded Vacuum operated Wastegate Actuators have been developed to provide the maximum possible boost response for your factory frame turbocharger. The Turbosmart vIWG 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 &