The Turbosmart TS-0223-1092 BOV Kompact EM Dual Port VR9 is a high-performance blow off valve specifically designed for BMW N55/N13/S63 engines. This custom, performance-driven part includes hardware and instructions for easy installation. With a 1-year manufacturer warranty, this product offers features such as no drilling required and 100% accuracy of fit, making it a reliable choice for those seeking improved air and fuel delivery for their vehicles. Notably, this item is not California legal, so it cannot be shipped to the state.