K&N has built this R&K Air Intake Series around assisting your Harley-Davidson to get more horsepower out of it with a simple upgrade, so get ready to go fast with their excellent air filtration. K&N has built these assemblies to replace the stock air filter and backplate with their tall air filter and custom backing plate design per application. Choose between chrome and black finishes along with one of the clean covers or go with no cover at all to maintain the stock appearance. As most of K&N's filter elements they have to offer these are washable and able to be reused once they are recharged. Developed to get more horsepower Built around the K&N high-flow air filter, includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack Results in a significant airflow increase to the engine without sacrificing filtration