So, you want to get a more thrilling sound out of your car. Don't want to deal with wiring in a harness kit to the engine, or laying out big money for a new intake/exhaust system. Then this is the answer, for under $50 you can take what BMW did with the sound enhancer to a new level. How about a V8, V10, or even a V12 sound will excite you behind the wheel. Do you have the HK sound system in your BMW? This is the product for you!
https://www.youtube.com/watch?featur...&v=b9XAC-BvUyo