The GFB Atomic Boost Control Valve enables swift adjustment of boost from under the bonnet.Designed to work on almost any turbo charged application, the GFB Atomic Boost Controller features a reliable and stable mechanism which provides accurate adjustment for a range of requirements. Boost on turbo cars is managed by the actuator on the wastegate, Boost controllers are designed to fix to a pressure source before the turbo and loop to the wastegate from the valve outlet and intercept the boost signal the actuator receives and increase it.