Collection: Air Filters

K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 4.62in H w/Vent

K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 3.87in H

K&N 5 1/8in Flange 11in OD 3 1/4in Height w/ Vent Custom Air Cleaner Assembly

K&N Custom Racing Assembly - Round Tapered - Red 1.656in Neck Flange - 2.25in Over Height

K&N Custom Racing Assembly - Round Tapered - Red 1.375in Neck Flange - 2.25in Over Height

K&N Custom Round Racing Assembly Red 5.875in OD x 2.406in ID x 1.75in Height

K&N Orion Universal Air Cleaner Assembly

K&N Universal Clamp-On Air Filter 3in FLG /4 1/2in B / 3 1/2in T / 4 3/8in H

Cobb 13+ Ford Focus ST Air Filter

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

aFe MagnumFLOW OER Air Filter Pro Dry S 13 Scion FR-S / 13 Subaru BRZ H4 2.0L

K&N Oval Air Filter - 8-7/8in L 5-1/4in W 3-1/4in H

K&N Air Filter Wrap Drycharger - Black

K&N 19-23 Subaru Forester Cabin Air Filter

K&N Universal Air Filter - 2-7/16in Flange x 3-1/2in OD x 4in Height

K&N Universal Clamp-On Air Filter 2-3/4in FLG / 5-1/16in B / 3-1/2in T / 4-3/8in H

K&N Replacement Panel Air Filter for 2014 Honda City 1.5L

K&N Universal Rubber Filter 6in Flange ID / 7.5in OD / 6in Height / Round Straight

K&N Round Tapered Drycharger Air Filter Wrap Red 7.5in Base ID x 5in Top ID x 7.5in H

K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 14inch H

K&N Universal Chrome Filter 2 1/2 inch O/S FLG / 4 1/2 inch OD / 2 inch Height

K&N Custom Air Filter 6.25in OS Width / 9.688in OS Length / 2.188in Height

K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame Arrestor

K&N 7-5/16in Flange 10in Height Velocity Stack Assembly - Red

K&N 15-17 Audi A1 L3-1.0L F/l - Replacement Drop In Air Filter

K&N Universal Rubber Filter 3 inch Flange 5 inch OD 3 inch Height

K&N 12-14 BAJAJ PULSAR 200NS 199 Drop In Air Filter

K&N 2-1/8in DUAL FLG 6-1/4 X 4inOD 3inH Universal Clamp-On Air Filter

Ford Racing 15-20 Mustang Shelby GT350 Blue Air Filter

aFe Takeda Intake System 00-09 Honda S2000 L4 2.0/2.2L Stage 2 Pro Dry S

aFe MagnumFLOW Air Filters OER PDS A/F PDS Ford Mustang 2010 V8-4.6L 11-12 V6/V8

aFe MagnumFLOW OEM Replacement Air Filter PRO Dry S 2015 Ford Mustang L4 / V6 / V8

aFe MagnumFLOW Air Filters OER PDS A/F PDS Nissan Cars 90-11 V6 Trucks 90-10

aFe MagnumFLOW Air Filters OER P5R A/F for 2016 Mazda Miata I4-2.0L

aFe MagnumFLOW OEM Replacement Air Filter PRO 5R 2015 Ford Mustang L4 / V6 / V8