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I got everything from my dealer and they installed it all, so it is all under warrantee. I think 500 rwhp is a lot for the stock block but Whipple says it can stand it and I don't do burnouts. It did cost some money but it was worth it. This is my second one as the first one wen for a test ride after a s/c pulley wheel change and the tech drove it into a telephone pole.