K&N’s lifetime replacement air filter is designed to increase horsepower and acceleration while providing excellent filtration. The drop-in design means adding performance to your 335i is simple. Simply remove the...

Increased cold air flow - Great sound - Smooth angles and transitions - Does not require any cutting to the fender lining - Does not require removal of the brake air duct - No large bulge in the fender lining so no tire rubbing (even...