"The Ultimate Supercharger Kit.Developed over the past few years using flow bench and Dyno facilities. This supercharger kit comprises all of the required fittings including, pulleys, belt, modified timing cover, Eaton M45 supercharger, inlet manifold, cometic steel head gasket 120 thou thick to lower the compression ratio. By far the best supercharger kit on the market.  Lower charge temperature due to a more efficient design. Fits left hand drive vehicles also. Easy install. Better driveability. Usese one head gasket not two. Two year warranty (excludes belt and track use).