I don't have a reciept, I bought them off a local racer who sold his project and couldn't use it. I wanted to sell it, but he asked for a reciept for something I don't have. Asked alot a questions I couldn't answer and refered them to just call magnum force and talk to those folks there. So, if you need a reciept and a warranty, just buy directly from them. Sorry I could not meet those needs. So, if somebody wants a set of control arms for $320 shipped, the offer still stands.