K&N Intake System-Harley Davidson (RK-3909-1)

K&N Intake System-Harley Davidson (RK-3909-1)K&N's RK Series was developed to get more horsepower from your Twin Cam Harley Davidson engine. Built around the legendary K&N High Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built in, dyno tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a

Designed to operate with all synthetic

mandrel-bent aluminum tube air induction system designed to fit some Mazda Miata and MX-5 models

Typically installs in less than 30 minutes with all necessary hardware provided

Application specific base seal and sealing bead

They come with custom mounting hardware to fit specific vehicle applications

The 69-8600TR air intake comes with a black rubber topped K&N high-flow air filter that installs into the previous air box space

UNIVERSAL FITMENT: Designed for use on a variety of applications

This coupler adapts a 3-1/4 inch to a 2-1/2 inch tube and is 2 inches in length

The RP-4980 is a clamp-on filter that has an inside flange diameter of 4 inches and a flange length of 5/8 inches

the intake system benefits from larger drain holes to prevent water buildup in the air box and retains the factory T-Rex eating a raptor graphic

This K&N Stubstack is designed to be used on Holley 390-850 cfm square bore carbs (4150/4160)

Available in straight and elbow configurations in a variety of sizes