Lackluster performance from a high-performance machine can only mean one thing: poor maintenance. Keep your car at peak operating levels by doing simple things like replacing your air filter. Stock BMW air filters are made from pleated paper. In some cases you can simply remove it from the car and give it a good shake or brush with a very soft bristle brush. But for heavily soiled filters a replacement is the only option. A lot of fresh air is crucial for your BMW's engine to make power. Don't let the filter be the weak link. We only offer OEM quality brands for air filters.
Check the Intake category for Performance Air Intakes & Drop In Performance Air Filters
A genuine BMW Motorsport part. Replace the restrictive lower section of your air box with this redesigned version. Draws air from the low pressure / low turbulent area behind the front bumper through a tuned intake horn into a larger air box. Retains stock air filter element. Optional aFe or K&N brand performance filters are available as well. Some late '90, and early '91 models came with these. If your M3 has a rubber connector (vs. a foam seal ring) between the lower air box and the radiator support, it is the old style air box.
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