I purchased a set a cams for my yzf 450. the decompression system on the exhaust cam was not working properly. called hot cams direct and the guy I spoke to had an attitude from the start. then informed me that I had to pay for shipping to return the cam. I called motosport and told them the situation. without hesitation they took care of everything! best customer service I've ever dealt with. its nice to know some people still care about their customers!