PM's FASTair intake utilizes the highest quality and best performing K&N filter element allowing a 10.21 HP increase on a stock Harley-Davidson. Not only does this intake make horsepower but it the most innovative and aggressive looking intake on the market. Leave it to PM to raise the bar by creating beautiful billet pieces literally laced together to beautify that high performance air filter. We also added PM's proven internal crankcase breather system to clean up the system.