For bolt-on power, you can consider modifications like high-flow fuel injectors, a performance exhaust, a larger throttle body, a cold air intake ... among enthusiasts. BMW paired this engine ...

You may think the base model 3 Series is a bit of a slouch when it comes to engine power and acceleration, however, the new 2012 BMW 320i (F30) aims to change all that with the help of a feisty ...