Air Filters

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable...

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable...

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable...

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable...

The K&N Flame Arrestor makes the best air-filtration technology available for marine engine use. Marine application owners can experience the i...

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...

K&N Marine Style Vent Hose Adapters mount between the top and bottom plates of a custom chrome air filter assembly. Vent adapters accommodate b...

K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower &...

K&N Air Cleaner Assemblies are designed to get more horsepower from your Harley-Davidson motorcycle. These air cleaner assemblies replace the s...

The K&N custom air cleaner below was designed to fit Harley-Davidson motorcycles. This K&N air cleaner is not street legal nor recommended ...

The K&N custom air cleaner below was designed to fit Harley-Davidson motorcycles. This K&N air cleaner is not street legal nor recommended ...

The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used ...

The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used ...

The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used ...

K&N Black Universal Air Filters are made from Dryflow oil-free synthetic media. These low restriction clamp-on air filters are designed and man...

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...

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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...

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...

K&N crankcase vent filters are perfect for racing applications, vintage cars or individuals who want to add some aesthetics to their classic ca...

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...