Performance Tests

So I'm really a newbie to the whole car scene, but I've looked at some stuff on the web and one thing that I've noticed a lack of is a website where they compare/contrast the horsepower/performance of different car parts for different cars. Granted I haven't looked at a whole lot of places, I wanted to ask if anyone here knew of any good websites where they actually run tests on different car parts and post the results. Thx for the help.

Welcome to AF! :D

The only site I can think of that specifically does comparisons is Vehix.com (http://www.vehix.com) but they compare car to car instead of part to part.

Sorry I couldn't be of more help!