To create the ultimate supercharger kits, the airflow experts at Trick Flow® teamed up with the supercharger experts at Magnuson. The supercharger has a standard roots design, but with intermeshed helical rotors and special port geometry to promote smooth, efficient, and quiet operation--it's driven by less than 1/3 hp at 60 mph. They're overdriven for boost starting at off-idle and they have an internal bypass valve to eliminate power loss at part throttle, plus a self-contained lubrication system, all in a compact package.