Aluminum Blow Off Valve S Diverter Turbo BOV Boost Fit For Volkswagen GTI Jetta Fit For Audi 1.8T 2.7T. This means you get all the noise of the blow off valve whilst retaining the compatibility with the recirculation requirements of the engine management system. The Splitter valve is also adjustable to suit your engine and can be converted to be totally recirculating if you ever require a stealth approach! Designed as a direct replacement for OEM diverter valves, it integrates seamlessly with factory ECU control logic. No aftermarket tuning is required for standard or mildly modified turbo setups. Precision-machined internals and sealed actuation mechanisms ensure consistent operation over extended use, minimizing the risk of pressure leaks or mechanical failure under demanding conditions., Manufacturer: TLVBFPG