Performance Air Filters

Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed chrome top and rubber base. The 1-1/4 inch diameter rubber flange is designed to push directly into the valve cover where venting is needed. 1-1/4 inch flange...

K&N RX-4990DR Red Drycharger Air Filter Wrap matches the red filter media for a cohesive look while adding water resistance and extra filtration layer.Features:Red colorFits RX-4990 seriesWater repellent treatmentExtends filter service life1-Year Limited...

K&N BM-0400 round replacement air filter for 1993-2006 BMW R1100, R1150, and R850 motorcycles. Red oiled cotton gauze provides high-flow filtration and increased performance.Open top design. Washable and reusable with No-Hassle Lifetime Limited Warranty...

Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed chrome top and rubber base. The flange is 1-3/4 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed. 1-3/4 inch...

K&N BD-6500 tapered conical replacement air filter for various 2000-2014 Bombardier, Can-Am, and Honda off-road models including DS650 and TRX450. Red oiled cotton gauze delivers high airflow and protection.Flexible frame with rubber top. Washable and...

K&N RX-4990DL Blue Drycharger Air Filter Wrap provides the same water-repellent protection as the black version but in blue color. Perfect for matching or custom looks.Features:Blue colorFits RX-4990 seriesSilicone treated polyesterHigh airflow...

K&N RX-4990DK Drycharger Wrap adds water repellency and pre-filtration to RX-4990 X-Stream filters. Silicone treated polyester material with uniform micron openings.Features:Fits RX-4990 seriesRound TaperedBlackExtends service intervalWater...

Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and rubber base. The flange is 1-3/4 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed. 1-3/4 inch...

K&N SU-1409 replacement air filter kit (2 filters) for 2009-2019 Suzuki C90 Boulevard models. High-flow unique shape design for increased performance and protection.Details:Flexible frameCotton gauze mediaWashable and reusableNo-Hassle Lifetime Limited...

K&N RX-4990 Universal X-Stream Clamp-On Air Filter matches popular dimensions with advanced X-Stream top technology for higher flow and longer intervals.Key Specs:Large End/Base: 6 in (152 mm)Flange Inside Diameter: 3 in (76 mm)Height: 5.563 in (141...

Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed chrome top and rubber base. The flange is 1-1/2 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed. 1-1/2 inch...

Constructed with a non-woven synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and rubber base. The flange is 1-1/2 inch in diameter and clamps directly on to tubing where venting is needed. 1-1/2 inch clamp-on...