Turbosmart Wastegate Actuator IWG75 SUBARU IMPREZA WRX 08 5 PSI BLACKSubaru WRX 2008 Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures. Designed as a direct bolt on replacement for the factory part, the Subaru WRX 2008 Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures. Designed as a direct bolt on replacement for the factory part, the Subaru WRX 2008 IWG is easy to install and