K&N Intake System-Harley Davidson (RK-3956S)

K&N Intake System-Harley Davidson (RK-3956S)K&N Street Metal Air Intake Systems for Harley Davidson motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High Flow Air Filter and a high volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less.

The 62-1020 crankcase vent filter has a K&N embossed rubber top with a chrome-plated steel base

resulting in additional power

The RP-4660 is a clamp-on filter that has an inside flange diameter of 4 inches and a flange length of 5/8 inches

Protect your drag car motor from debris

K&N Inverted Top Universal Air Filters - This unique approach to filter design and concept utilizes a filtering top that actually inverts

The K&N AirCharger 63-3099 air intake system replaces the restrictive factory air filter and air intake housing in some Chevrolet Camaro ZL1 models (see vehicle applications)

The K&N E-4900 is a synthetic oil-free replacement air filter provides exceptional filtration to your small engine or light industrial equipment

Connects a 3-1/4 inch to a 2-1/2 inch tube

Designed for custom do-it-yourself racing air intake applications

Typical installation can be completed in 60 minutes or less with simple hand tools

The E-9289 custom air filter is manufactured to replace the air filter in the 57S-4000 performance air box and it comes with a K&N embossed lid cap

The 1 inch diameter zinc tube is designed to push in and clamp directly on to rubber or plastic tubing where venting is needed