uhh...I think you mean Powerdyne man and I've never heard that they don't last more than 10,000 miles. The good thing about Powerdyne is that, if they break, you can get them rebuilt for a lot less than other superchargers. There are a lot of superchargers that are made for stock applications, so you wouldn't have to change your cam. Any 5psi s/c will prob. let you keep your stock cam. Powerdyne's are self-contained meaning you don't have to tap the oil pan to install, which is what a lot of people like about them. Some people have problems breaking belts when using a Powerdyne, but i'm not actually sure why. When I got my car, it had a powerdyne, but I didn't get to drive it enough to actually have any personal opinions on them.