For a lot of car enthusiasts, once they buy a new car, that is just the beginning of a long and often expensive project of tuning to achieve improved BMW performance. There are many hundreds of different decisions on how to accomplish this. Where do you start, what can be done by the typical backyard mechanic and what requires professional help? And, where can you locate quality parts at the best price? Locating parts is the area of tuning that you have the most control over and where you can save time and expense, if you do your homework.

Now, there is more than one school of thought on this subject. With respect to BMWs, a lot of design and engineering was completed by the manufacturer to make a premium vehicle that is typically a superior performer than many of its competition. It's far too easy to end up going backwards in your goal for performance by choosing the wrong parts, installing them incorrectly or not matching up the performance characteristics of different systems on your car. Also, BMW is selling an ever growing line of its own aftermarket parts so you can be confident of the same quality and engineering in these parts just like the rest of your car. The drawback is that these parts are often more expensive than their competition.

So, how should you go about finding premium parts for your BMW? I am a big believer of doing research online using a variety of tools. There are many good forums out there consisting of thousands of BMW owners. With very little work you can often find a member with your exact vehicle who has already done the same modifications to their vehicle and can often provide some valuable information on what works, which supplier has the best price, installation hints and more. Some of the best include E90Fanatics, e46fanatics and roadfly.org. Time spent here will save you a lot of money and frustration so you don't have to repeat the mistakes of others.

Another excellent source that is often overlooked is eBay. The selection of parts is often overwhelming and there are a lot of cheap, knock-off parts that you should avoid. If you buy from a quality supplier with excellent feedback and do your research on exactly the part you need and at what price, you can significantly extend your tuning budget. You can locate new parts, OEM BMW parts and used BMW parts quickly and easily to make your tuning project a a show stopper.