If you’re looking to extract more horsepower out of your LSA supercharger system these DMS overdrive pulleys are the way to go. They’ve manufactured a range of diameters to help meet your goals. These pulleys are designed to fit the ATI LSA harmonic balancers. They will work with LSA, LT4, KONG, Harrop, Magnuson and many other supercharger brands. All DMS pulleys are CNC machined from 6061 aluminum and anodized for anti-wear properties.