K&N 06-09 BMW 135/335/535 Replacement Drop In Air Filter - E-3495

The K&N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable...

K&N Oval Air Filter - 8-7/8in L 5-1/4in W 6in H - E-3491

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Oval Air Filter 8-7/8in L 5-1/4in W 5-1/2in H - E-3481

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of...

K&N Oval Drop In Air Filter - 8.785in x 5.25in / 4.5in H - E-3471

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Oval Air Filter - 8-7/8in L 5-1/4in W 3-1/4in H - E-3461

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Filter Universal Round Filter 7.75in OD x 6.25in ID x 2.5in H - E-3450

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Oval Air Filter - 8-7/8in L 5-1/4in W 2in H - E-3442

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Custom Air Filter 7in OD X 5 1/2in ID x 2in H - E-3402

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N PreCharger Wrap for E-3380 Filter - Red - E-3380PR

The K&N PreCharger filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material...

K&N PreCharger Wrap for E-3380 Filter - Black - E-3380PK

The K&N PreCharger filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material...

K&N Filter Universal Round Air Filter 6.25in. Outer Diameter - E-3346

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N Custom Air Filter - Round 6.25in OD 5.25in ID 4in H - E-3344

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...