This Turbosmart Kompact VR9 Plumb Back EM BOV is a high-quality replacement part for BMW N55 & S63 Turbocharged Engines. It is designed to fit perfectly and function seamlessly with your vehicle. The blow-off valve is made with durable materials and is built to last. The product is compatible with a wide range of BMW models, including the 335i Active Hybrid 3 5 7 435i 535i 550i 640i 650i, Plug And Play & N', Straight 6 Six Inline Twin Turbos N13 135i 235i, BOV Boost Turbocharger Turbocharged PSI, I6 Cylinder V8 TT Direct Replacement Bolt On OEM, Fast And Free Shipping, 740i 750i X3 Xdrive 35i X5 M 50i X6 Series, and Factory Upgrade Improved Heavy Duty. (See pictures for details)