BMWs are already known for their stellar engineering, design, and unrivaled performance—very little needs to be done to these fantastic machines to make them even greater than they already are. However, some enthusiasts are hungry for even more power or higher levels of performance, and there are ways to alter BMWs to make them an even greater force to be reckoned with. Perhaps the most important first step in discovering how you can modify your BMW to your liking is to evaluate what you’d like more of. Power, endurance, and all-around heightened performance levels are the main areas of …