Turbosmart 15-21 Mercedes-Benz C63 4.0L (M177) BOV Kompact EM Dual Port VR29

This is the Turbosmart Kompact EM Dual Port VR29 Blow Off Valve, specifically made for the 2015-2021 Mercedes-Benz C63 models equipped with the 4.0L M177 twin-turbo engine. This part replaces the factory electronic diverter valve, offering a more direct and responsive way to manage boost pressure. When your engine's throttle closes suddenly, like during a gear shift, the turbocharger's compressor can create a surge of pressure. This valve safely vents that excess pressure to prevent damage to the turbo and improve throttle response on reapplication of throttle.

The EM Dual Port VR29 is a well-built unit featuring a unique dual-port design. It recirculates most of the vented air back into the intake system to maintain smooth idling and prevent check-engine lights, while also venting a small amount to atmosphere for that characteristic blow-off sound. This design helps to minimize the chances of triggering a check engine light compared to a full atmospheric vent. The billet aluminum construction ensures durability and a solid feel, and the integrated electronic solenoid means it works directly with your car's factory ECU and wiring harness, making installation straightforward without needing extra boost controllers.

Installation involves removing the factory electronic diverter valve and fitting the Turbosmart unit in its place. Because it uses the factory electronic connector and controls, it's designed to be a direct replacement. This valve is a popular choice for C63 owners looking for improved turbocharger longevity and a more engaging driving experience, especially when upgrading other engine components. Please note that this part is not CARB approved and cannot be shipped to California.