The Neuspeed Supercharger features a heavy-wall casting (for sound deadening) and wrap-around fins for strength and cooling. It is then precision CNC machined to incorporate the latest Eaton 45cid rotor group - same as used in Mercedes, Jaguar, Ford and GM vehicles. This reliable, highly efficient roots type rotor group has a limited warranty of three-years or 36,000-miles. Th is supercharger makes positive pressure right off idle for smooth, powerful engine response right up to redline. Squeeze the throttle in any gear for instant acceleration and feel a 50% horsepower increase! Smooth flowing intake runners and the large plenum have a ram effect for extra performance and driveability.