Tillix Performance Needle Valve. Used to control the spool rate and set the boost pressure at cruising speeds.
If the valve is fully closed, the fastest possible spool rate is achieved by the turbocharger, and also the highest cruising boost pressure.
Tuning this valve for a balance of response and low cruising boost pressure is essential in setting the vehicle up correctly. Extracting a good amount of power while retaining the factory or better-than-factory fuel economy is made easy with the addition of this valve.
Comes with brass fittings the correct size to suit our silicone hose which can be purchased here.