K&N Custom Air Filter - Oval - 11.5in O/S L x 8.125in O/S W x 2in H - E-3505

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of...

Spectre Adjustable Conical Air Filter 5-1/2in. Tall (Fits 3in. / 3-1/2in. / 4in. Tubes) - White - 8138

For many types of applications, Spectre offers this High Performance Racing (HPR) Air Filter. This white media clamp-on filter features a top that houses an inverted cone filter for improved service...

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...

K&N Universal Air Filter Chrome Round Tapered Red -4in Flange ID x 1.125in Flange Length x 5.5in H - RG-1002RD-L

K&N Universal Air Filter Chrome Round Tapered Red -4in Flange ID x 1.125in Flange Length x 5.5in H

K&N Universal Clamp-On Air Filter 3in FLG /4 1/2in B / 3 1/2in T / 4 3/8in H - RU-9410

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

K&N Round Air Filter Assembly 5.25in ID / 5in Height / 5.125in Neck Flange / 1 1/4in Drop Base - 60-1300

K&N's custom air cleaner assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. These custom air cleaner assemblies are...

K&N 2in Base OD x .375in Flange ID x 1.75in H Rubber Base Crankcase Vent Filter Multi Lingual - 62-1600RD-L

K&N 2in Base OD x .375in Flange ID x 1.75in H Rubber Base Crankcase Vent Filter Multi Lingual

Mishimoto Performance Air Filter - 3.86in Inlet / 7.2in Length w/ Inlet Stack - MMAF-38672S

Provide your performance vehicle with superior air filtration and optimal airflow with a Mishimoto Performance Air Filter! Mishimoto performance air filters can be cleaned and reused, which allows...

aFe MagnumFLOW Air Filters IAF PG7 A/F PG7 6F x 7-1/2B x (6-3/4x5-1/2)T (Inv) x 8H - 72-91053

With seven layers of progressively finer mesh cotton gauze/synthetic media between 100-percent polyurethane top and base, this high flow "oiled" conical performance filter provide maximum protection...

K&N Marine 3.75in Flange ID x 3.75in Top OD/4.5in Base OD x 4in H Round Tapered Flame Arrestor - 59-5006

The K&N Flame Arrestor makes the best air-filtration technology available for marine engine use. Marine application owners can experience the increased horsepower and engine protection provided by...

GReddy Airinx S 70mm Universal Filter - 12500602

GReddy Airinx S 70mm Universal Filter

aFe MagnumFLOW Pro DRY S Universal Air Filter (3x4.75) IN F (4x5.75) IN B (2.5x4.25) IN T x 6 H - 24-90054-MA

These filters feature five layers of pre-oiled cotton gauze media to provide maximum performance. Their progressive layering allows the filters to flow at high levels even when dirty. This media is...