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a tapered ramp ground into the side of the spool reduces the passage to restrict flow to the nozzles
AF4075-1500
Turbine housings can be replaced on most turbos easily via mounting bolts or V-bands and a few minutes of time
Dimension from block surface to hub: 5-1/2"
IWG75 Sti08/WRX09 Black 7PSI Product:IWG75 Sti08/WRX09 Black 7PSI a tapered ramp ground intoTurbosmart Upgraded Wastegate Actuators have been developed to provide 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
US$ 71.57
US$ 124.50
US$ 91.63
