Air Filters

s while maximizing airflow. Whether you're upgrading your factory filter or building a full intake system, we've got you covered.

Choose from cotton, synthetic, or foam filters available in cone, panel, and universal fitments for both street and race applications.

🔧 Improved throttle response and engine protection
⚙️ Compatible with LS, HEMI, JDM, and more
🏁 Ideal for naturally aspirated, turbo, and supercharged builds

Find the right parts for your vehicle easily by selecting the make, model, and year.
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2782 products

K&N Round Air Filter Assembly
K&N Round Air Filter Assembly
K&N Engineering

K&N Round Air Filter Assembly

525.99 SAR 525.99 SAR
K&N 5-1/8in 14in X 5-3/4in h 1-1/4in Drop Base
K&N 5-1/8in 14in X 5-3/4in h 1-1/4in Drop Base
K&N Engineering

K&N 5-1/8in 14in X 5-3/4in h 1-1/4in Drop Base

715.99 SAR 715.99 SAR
K&N Round Air Filter Assembly 5.25in ID / 5in Height / 5.125in Neck Flange / 1 1/4in Drop Base
K&N Round Air Filter Assembly 5.25in ID / 5in Height / 5.125in Neck Flange / 1 1/4in Drop Base
K&N Engineering

K&N Round Air Filter Assembly 5.25in ID / 5in Height / 5.125in Neck Flange / 1 1/4in Drop Base

715.99 SAR 715.99 SAR
K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 2.75in H x 1.25in Drop Base
K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 2.75in H x 1.25in Drop Base
K&N Engineering

K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 2.75in H x 1.25in Drop Base

570.99 SAR 570.99 SAR
K&N Universal Custom Air Filter - Round 5.125in Flange / 14in OD / 5.125in ID / 5.625in Height
K&N Universal Custom Air Filter - Round 5.125in Flange / 14in OD / 5.125in ID / 5.625in Height
K&N Engineering

K&N Universal Custom Air Filter - Round 5.125in Flange / 14in OD / 5.125in ID / 5.625in Height

715.99 SAR 715.99 SAR
K&N Universal Custom Air Filter - Round 7.3125in Flange / 11in OD / 7in Height
K&N Universal Custom Air Filter - Round 7.3125in Flange / 11in OD / 7in Height
K&N Engineering

K&N Universal Custom Air Filter - Round 7.3125in Flange / 11in OD / 7in Height

715.99 SAR 715.99 SAR
K&N 7-5/16in Flange 11in Dia 4-1/2in h
K&N 7-5/16in Flange 11in Dia 4-1/2in h
K&N Engineering

K&N 7-5/16in Flange 11in Dia 4-1/2in h

715.99 SAR 715.99 SAR
K&N 5-1/8in flg 11in od 7-1/4in h
K&N 5-1/8in flg 11in od 7-1/4in h
K&N Engineering

K&N 5-1/8in flg 11in od 7-1/4in h

715.99 SAR 715.99 SAR
K&N Round Air Filter Assembly 5-1/8in FLG 11in OD 3-3/8in
K&N Round Air Filter Assembly 5-1/8in FLG 11in OD 3-3/8in
K&N Engineering

K&N Round Air Filter Assembly 5-1/8in FLG 11in OD 3-3/8in

715.99 SAR 715.99 SAR
K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT
K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT
K&N Engineering

K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT

665.99 SAR 665.99 SAR
K&N Lvrd 2-3/16in Or 2-5/18in Flg. 4in Top (1)
K&N Lvrd 2-3/16in Or 2-5/18in Flg. 4in Top (1)
K&N Engineering

K&N Lvrd 2-3/16in Or 2-5/18in Flg. 4in Top (1)

665.99 SAR 665.99 SAR
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K&N 59-74 Rover Custom Round Race Filter Length 6.56in Width 6.31in Height 2.25in
K&N 59-74 Rover Custom Round Race Filter Length 6.56in Width 6.31in Height 2.25in
K&N Engineering

K&N 59-74 Rover Custom Round Race Filter Length 6.56in Width 6.31in Height 2.25in

570.99 SAR 570.99 SAR