I just bought a '92 318 is about two weeks ago, and I love it, but...every website I've been to that has BMW performance parts doesn't have perfomance parts for the '92 318 is. Am I missing something, or did I just make a bad decision in which BMW I purchased? I would love to add a cold air intake, new exhaust system, and a new chip...but, from what I've seen so far, none are available for my car. Any suggestions?

Try Dinan, or Alpina if you want to spend the money, but, since the car's been discontinued for a while, and there aren't that many around, there isn't much of a demand for perfomance parts because people buy the newer generation 3-series. If you love the car, then that's how you know you didn't make a bad decision in getting the car. Otherwise try eBay.