I have a 1997 Audi A6 quattro. I would like to turn it into a tuner car.. somewhat anyways.  First thing I would like to do is improve its performance, but I dont know where to start.. camshaft, valve springs, pistons, computer chip, gaskets?? I have no Idea.. I dont know alot about this stuff, but am willing to learn. So if anyone is willing to give me a few pointers on what to do or what to start with, that would be greatly appretiated.. thanks!!