Chevy GM LS3 Complete 6-71 Roots Supercharger Blower Kit Speedmaster Keychains are the perfect

Speedmaster Keychains are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories

The successful formula of offering a complete engine drive accessory kit has now been applied to the Serpentine with Speedmaster pulley systems

improved throttle response and better fuel economy

Manifolds are cast from steel molds

Speedmaster LS dual 4-barrel

Chevy GM LS3 Complete 6-71 Roots Supercharger Blower Kit Speedmaster Keychains are the perfectExperience unparalleled performance and power with Speedmasters 6 71 Complete Supercharger Kitengineered for maximum horsepower and durability.