The K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter...

HKS RACING CHAMBER BCNR33/BNR34 RB26DETT

HKS RS ZN6/ZC6 86/BRZ FA20

HKS RS ZC31S SWIFT SPORT M16A

HKS RS FK7 CIVIC L15C/L15B

HKS RS VAB VAF WRX STI EJ257

This 7” tall 360-degree radial flow air filter features a 5" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity,...

Momentum’s innovative filter-to-housing interface was built to feature the largest air filter possible. This 7.5” tall 360-degree radial flow air filter features a 3.5" flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton...

Momentum’s unique filter-to-housing interface was built to feature the largest air filter possible. This 9” tall 360-degree radial flow air filter features a 3.5" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum...

Momentum’s unique filter-to-housing interface was built to feature the largest air filter possible. This 7-1/2” tall 360-degree radial flow air filter features a 4" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum...

Huge 5-Layer Performance Air Filter: The Momentum GT intake is designed around a pre-oiled, large 9" oval 360 degree radial flow performance air filter with 5-layers of progressive finer mesh cotton media providing maximum airflow and performance. The...

Huge 5-Layer Performance Air Filter: The Momentum GT intake is designed around a pre-oiled, large 9" oval 360 degree radial flow performance air filter with 5-layers of progressive finer mesh cotton media providing maximum airflow and performance. The...

Unique One-Piece High Quality Housing W/ Sight Window: A custom CAD designed roto-molded housing made from heat soak resistant material eliminates the use of multiple components and ensures the coolest air intake charge available. A large clear sight...

Large Five Layer Performance Air Filter: Momentum’s innovative filter-to-housing interface was built to feature the largest air filter possible. This 9” tall 360-degree radial flow air filter features a large (6-3/4" x 4-3/4") oval flange and our...

Dual 4” Flange 360-degree radial flow air filters feature our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. They provide your engine with the largest amount of high-flowing air, and in most...

Dual 4” Flange 360-degree radial flow air filters feature our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Their progressive layering provides great filtration efficiency and dust holding capacity, while not...

Unique One-Piece High Quality Housing: A custom CAD designed roto-molded housing made from heat soak resistant material eliminates the use of multiple components and ensures the coolest air intake charge available. The roto-molded housing is made out of...

Huge 3-Layer Performance Air Filter: The Momentum GT intake is designed around an oil-free, large 9" oval 360 degree radial flow performance air filter with 3-layers of progressive finer porosity synthetic media providing maximum convenience. The unique...

Huge 3-Layer Performance Air Filter: The Momentum GT intake is designed around an oil-free, large 9" oval 360 degree radial flow performance air filter with 3-layers of progressive finer porosity synthetic media providing maximum convenience. The unique...

Unique One-Piece High Quality Housing W/ Sight Window: A custom CAD designed roto-molded housing made from heat soak resistant material eliminates the use of multiple components and ensures the coolest air intake charge available. A large clear sight...