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Unlock the full potential of your twin-turbocharged V8 with the Turbosmart Kompact EM Plumb Back VR30. This award-winning diverter valve system is the premier plug-and-play upgrade for high-performance vehicles equipped with the 4.0L TFSI engine. By replacing the fragile factory plastic valves with Turbosmart’s motorsport-proven billet aluminum construction, you eliminate boost leaks and ensure maximum reliability. The Kompact EM series features a proprietary internal solenoid for seamless ECU integration, meaning no extra hoses or complex wiring are needed. With the patented Boost-Balance technology, the valve's seal actually tightens as boost pressure increases, providing lightning-fast throttle response and unmatched performance in any driving condition.