I am looking for a supercharger for my 2003 GMC 2500hd all these guys have these diesels that will pull anything so i want a gas that can pull. And i don't really want to pay the money for a brand new one. So if there is any descent used ones out there would be great. something around 7-9 pounds. 701-263-5665. Call or Text. Preferably whipple but anything considered. Let me know what you got! Thanks alot Pax