GFB WGA Internal Wastegate Actuator Turbo Down Pipes/Front Pipes Fitment is easiest on 08-21

Fitment is easiest on 08-21 STI models

are evident

All lowering amounts are measured off of standard shassis models

To help improve the flow of air into the radiator

GFB WGA Internal Wastegate Actuator Turbo Down Pipes/Front Pipes Fitment is easiest on 08-21THE 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