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The Renault Megane RS250 Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures
more powerful Hard anodized
High Speed bearings
These cyilnder heads were targeted at larger cubic inch engines (509-632 CID) looking for maximum horsepower and rpm capability with a primary operating range of 3500-8000 rpm's (This range is an average and will vary with engine displacement and component selection)
AF844-12-12BLK
IWG75 EVO 9 Black18PSI Product:IWG75 EVO 9 Black18PSI The Renault Megane RS250 InternalTurbosmart 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
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