KraftWerks 18-21 Ford Mustang 5.0L V8 Race Supercharger Kit (C38-92)The Kraftwerks 18 21 Mustang GT supercharger system provides instant throttle response and a linear power curve that increases all the way from idle to redline without the typical spiking or surging turbochargers are known for. This unique, more useable power curve results in reduced cylinder pressures, less strain on engine components, and increased reliability. Rotrex superchargers also operate much cooler when compared to turbochargers and other