vIWG Universal 76mm - 6inHg -150mm Product:vIWG Universal 76mm - 6inHg -150mm 4160 & 4500 2-Circuit Models

4160 & 4500 2-Circuit Models

some late model blocks can be modified to work with these heads

AF208-03DS

7L L4 F/I - All 2011 ALFA ROMEO GT 3

vIWG Universal 76mm - 6inHg -150mm Product:vIWG Universal 76mm - 6inHg -150mm 4160 & 4500 2-Circuit ModelsTurbosmart Upgraded Vacuum operated Wastegate Actuators have been developed to provide 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 &