This listing is for parts that are part of a Kenne Bell Twin Screw supercharger kit. What you see is what you get. It came off a 2004 GMC Sierra 2500HD. It will fit all Chevrolet and GMC Silverado, Sierra, Tahoe, Yukon, H2, Suburban, Escalade from 1999-2006. All other pieces required to make this kit fit can be easily bought.
