Air Filters - Drop In

K&N Custom Air Filter Round 5.25 inch ID 6.25 inch OD 2.5 inch Height - E-3322

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 increase in horsepower. Each performance air filter is...

K&N Custom Filter Oval Length 6.125in I/S /7in O/S x Width 3.625in I/S/ 4.5in O/S x Height 1.75in - E-3321

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 increase in horsepower. Each performance air filter is...

K&N Custom Air Filter Round 5-7/8in OD x 4-7/8in ID x 1.4/5in H - E-3212

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 increase in horsepower. Each performance air filter is...

K&N Custom Air Filter Round 5-3/8in OD x 4in ID x 2in H - E-3200

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 increase in horsepower. Each performance air filter is...

K&N Custom Air Filter Round 4.5in ID / 5.875in OD / 1.75in Height - E-3180

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 increase in horsepower. Each performance air filter is...

K&N Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height - E-3120

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 increase in horsepower. Each performance air filter is...

K&N 05-06 Toyota Tundra / Sequoia V8-4.7L Replacement Drop In Air Filter (For P/N 57-9027) - E-3034

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 increase in horsepower. Each performance air filter is...

K&N Custom Air Filter Cotton Gauze 13 1/2in x 6 9/16in B / 13in x 6 1/6in T / 7in H - E-3033

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. This air filter is washable and reusable and it is custom designed to fit into K&N's replacement air filter system part E-0780. If...

K&N Custom Air Filter Cotton Gauze 14inOD x 12 1/4inID x 2inH - E-3032R

This K&N racing air filter is made with 2 layers of cotton and does not come oiled. It was designed to provide even lower air restriction than our replacement air filters for street vehicles. K&N racing air filters are washable and reusable and come with...

K&N Custom Air Filter Round 1.063in ID x 2in OD x 1.063in Height - E-3009

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 increase in horsepower. Each performance air filter is...

K&N Replacement Round Straight Universal Air Filter for 2010-2015 Audi A8 2.0L/2.5L/3.0L/4.0L/4.2L - E-2999

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 increase in horsepower. Each performance air filter is...

K&N Replacement Unique Air Filter for 2009-2014 Mercedes-Benz C/CLS/E/GLK/ML/S/SLK Class Diesel - E-2998

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 increase in horsepower. Each performance air filter is...