GenV IWG BorgWarner EFR Twin Port 14psi BlackTurbosmart GenV Twin Port Internal Wastegate Actuator to suit Borg Warner EFR Series Turbochargers. This IWG actuator, has it all taking technology from the Award winning GenV range of External Wastegates providing unparalleled actuator performance. Turbosmart GenV IWG (Internal Wastegate Actuator) Range provide improvements in boost control over your factory actuator. The large working surface area of our unique diaphragm system ensures increased