Actuator vIWG R56 Mini Cooper S - 0,2bar / 6inHg | Turbosmart Turbosmart 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 & revisions to the actual springs fitted, resulting in greater leverage of the forces the actuator is working against (boost and backpressure) while still being super-responsive.  Upgrading with the same base pressure as the factory, you can expect a broader boost & torque curve through peak boost being achieved earlier in the RPM and being held longer into higher RPM. These improvements can be amplified with higher base pressures. However, tuning & recalibration is recommended for optimal performance. Features Proprietary Silicon Nomex Diaphragm High-Grade Billet Aluminum Construction Stainless Steel Rods and Clevis Turbosmart Unique Locking Collar System This is a bolt-on fitment for the factory turbocharger as fitted to the 1.6L  Prince N14 & N18 Turbo engine found in the R56 Mini Cooper S and John Cooper Works models. Note: Complete replacement actuator Bolt-on product with special setup instructions Application: Vehicle specific