In order for the engine to get enough clean air, you need an air filter with a more efficient filter area. Our Pipercross air filter mats offer 30-40% more air flow compared to a conventional paper filter and are perfect for anyone looking for an oil-free, washable filter with no louder intake noise for their BMW E30, E36 or E46. You simply replace the original paper air filter. Due to the special foam, the air filters do not have to be oiled. They are washable and reusable. The washing and care products are also available from us. They are therefore more sustainable and cheaper in the long run than original paper air filters.
