See the Purchasing forum's top sticky threads for several viewpoints on what items one could check before buying a used Impreza. The first thing I'd do though is figure out how the used Impreza compares to a new Impreza.I had my buddy check it out and it dosnt seem to have anything major going on all we found was what looked to be either vavle cover gasget seal or cam seal leak. Other than that the rest of the issues are cosmetic. It has a cat back exhaust on it, K&N air filter, and a turbo timer on it. Other than that I cant see any other modifications. Do you guys think there is anything I should be worried about?