I know man, he got his and was like omg this is ****ing nuts. I drove it and was like geez they do perform. But his top end started rattling hardcore, and he just said **** it. Ordered all the **** and hasnt even taken the engine out of the quad yet lol. He is a small engine mechanic anyways, and he wanted a good reason to tell his wife why he was spending almost 2 grand on it. He was thinking about doing the 800ish kit but he wanted to keep the reliability. I'll let you know how it goes when he gets the ****er tore apart and head sent off. He has all the parts already, so its just a matter of him having time.