2001 – 2006 BMW 330 has certainly been a success story in the company’s history. This generation of 3-series is true to form and it offers an excellent package of performance, economy and luxury. While BMW goes to great lengths to insure that they get the best possible performance out of every part of their engine, there is always room for improvement. The K&N 330 cold air intake can give you some fairly significant power gains over the stock intake. The K&N cold air intake is a more open design than the factory intake which means that turbulence in the airflow is reduced, reducing the load on the engine and increasing your air flow. More air flow, of course, equals more power, so any increase in the air flow is going to be a good thing. A BMW K&N cold air intake will not only give you power gains, but it will also change the engine note. By eliminating the restrictive factory air box, you will actually be able to hear the sound of the top half of your engine. The K&N cold air intake will give your car a wonderful howl that is very distinct without being obnoxious or loud. Shoppers definitely deserve quality customer support when considering dependable auto parts for a car or truck. Because you deserve that, we created a 24-hour, 7 day a week technical support call desk to address your needs. If you find a better price, give us a call - we always beat any advertised price for auto parts.