The kit consists of the Forge single piston dump valve, KTR hose, blanking bung, vacuum tubing and hose clips.
It works by the valve opening once you lift off the throttle,which releases some of the built up boost pressure in the boost pipes which can cause the turbo to slow down when the throttle is shut. It also creates the familiar dump valve "whoosh" as the boost pressure is released by the valve.
Now also available with a Forge black dump valve.
Suitable for Twingo GT and Clio 3 GT models.