K&N® cold air intakes are guaranteed to increase horsepower, torque, and acceleration, and are custom-designed for specific model years, helping ensure a precise fit and easy install.

Add more horsepower to your Harley Davidson FXSTC Softail Custom with a K&N cold air intake system. K&N Harley Davidson FXSTC Softail Custom cold air intakes are easy to install and …

Jan 19, 2017 · A panel filter can also be utilized in a custom air box, whether on a race car or a show car. Mounted remotely near the fresh air source, a panel filter-equipped air box can flow …

Feb 20, 2013 · This custom air box replaces the factory air box and filter element with a fully enclosed injection modified air box containing a reusable K&N air filter which increases …

Add more horsepower to your Volkswagen Passat with a K&N cold air intake system. K&N Volkswagen Passat cold air intakes are easy to install and add power & acceleration while …

K&N universal style clamp-on snowmobile air filters replace the existing airbox and OEM stock filter. K&N manufactures hundreds of sizes, shapes and lengths to fit virtually any snowmobile …

Buy now from the K&N Store and get a 100% Money Back Guarantee on any cold air intake system! Designed to increase power and torque; K&N Million Mile Limited Warranty® …

Select from OPEN 360° custom chrome, tall velocity stacks, or even the full size custom plenum. Even the 14" drop base air cleaner can be used. See the Custom Assemblies Section for …

K&N Marine Style Vent Hose Adapters mount between the top and bottom plates of a custom chrome air filter assembly. These vent hose adapters accommodate breather hoses without …

These air box assemblies are used on sprint cars as well as other racing vehicles where light weight and high air flow are desired. As with all K&N air filters, universal air box assemblies …