GFB WGA Internal Wastegate ActuatorTHE WGA IS A HIGH PERFORMANCE INTERNAL WASTEGATE ACTUATOR DESIGNED TO IMPROVE BOOST CONTROL ON TURBO SYSTEMS WITH AN INTERNAL WASTEGATE. When diving into the world of increasing your cars boost pressure, the limits of a factory fitted wastegate actuator can soon become apparent. Even with electronic boost control it is not always possible to overcome wastegate issues such as boost drop off at high RPM, unstable boost curve, or an inability to achieve