When engine horsepower is raised above a certain point, the factory turbocharger by-pass valve actuator is unable adequately modulate the wastegate by-pass valve in order to control the volume of exhaust gas through the turbine. Consequently, turbocharger boost pressure becomes uncontrolled. APS has specified a replacement by-pass valve actuator that delivers precise wastegate system operation in high turbocharger boost pressure applications. With the APS turbocharger by-pass actuator installed, turbocharger boost pressure can be controlled precisely and the full potential of the factory turbocharger unleashed To see more components for the Ford XR6 Turbo click HERE If you would like further information on the APSTurbocharger Actuator for the Ford Xr6Turbo, please do not hesitate to contact Autotech Engineering via email on sales@autotechengineering.com.au or by phone on (02)9897 1378