Air Intake Systems

The K&N RK-3942 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to your Harley-Davidson...

The K&N RK-3940 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to specific Yamaha XVS9...

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & to...

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & to...

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & to...

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & to...

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & to...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Ai...

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Ai...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N air cleaner assemblies, designed for your Harley-Davidson, are a remarkable combination of performance and style. These air cleaner assembl...

K&N's APOLLO CIS is a universal "Cold Air Intake System". The Apollo's specially designed shape increases volumetric efficiency and is made of ...

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your...

K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high a...

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your...

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your...

Vent tubes can be used to attach smog tubes, crank case ventilation tubes or other vacuum related accessories. Requires creating 1/4 inch NPT threa...

K&N's Refresher kit for washable cabin air filters comes with a 12 ounce pump spray bottle of cabin filter cleaner, an 8 ounce pump spray bottl...

K&N Recharger Kit 99-5050BL is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced. The kit comes with K&...

K&N Recharger Kit 99-5050BK is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced. The kit comes with K&...