- Polished Finish. For Black Wrinkle Finish see M-6066-CT46HP - Fits 2003-2004 Mustang Cobra - Simple bolt-on produces additional 85 hp and 50 lb-ft of torque at the rear wheel with 93 octane - Designed for use with most aftermarket single blade oval bore throttle body. For stock throttle body use M-6066-CT46P - Kit includes: * 2.3L Twin Screw Supercharger Assembly * Supercharger inlet * Manifold adapter plate * Hardware kit Requires PCM, fuel pump and MAF meter upgrades Installation of this kit will void your new vehicle engine warranty