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Upgrade your Ferrari 488’s twin-turbo 3.9L V8 with the award-winning Turbosmart Kompact EM Dual Port VR31. This blow off valve system is the world’s first genuine plug-and-play solution, designed to replace the factory diverter valves without the need for adapters, extra hoses, or complex assembly. Featuring a 50/50 hybrid design, the Dual Port vents to the atmosphere for that signature high-performance turbo sound while simultaneously recirculating air to maintain perfect factory driveability. Engineered with motorsport-proven billet aluminum and patented Boost-Balance technology, these valves ensure a superior seal that actually strengthens as boost pressure increases, providing lightning-fast throttle response and unmatched reliability compared to the original plastic units.