A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter...

Gain a guaranteed increase in horsepower and torque with a K&N cold air intake system featuring a mandrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized,...

Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring madrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media.User 1Installation...

K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's No-Hassle Lifetime Limited Warranty. These intake kits use only non-metallic rotationally molded tubes that can reduce air temperature and decrease...

K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's No-Hassle Lifetime Limited Warranty. These intake kits use only non-metallic rotationally molded tubes that can reduce air temperature and decrease...

HKS DryCarbon Suction kit ZN6/ZC6 FA20

HKS RS US CIVIC Si

HKS RS ROADSTER NCEC LF-VE

HKS RS FD3S 13B-REW

HKS RS ZN6/ZC6 86/BRZ FA20

HKS RS NCP91 VITZ-RS 1NZ-FE

HKS RS Z33 VQ35DE

HKS RS FK7 CIVIC L15C/L15B

HKS RS VAB VAF WRX STI EJ257

Maximum performance within minutes is what this aFe Stage 1 cold air intake system delivers. Enclosed in a durable 16 gauge heat shield; a massive washable/reusable; 360 deg. conical Pro 5R air filter increases airflow resulting in an additional 6 hp;...

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 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 9” 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...

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...