K&N HARLEY AIR CLEANER: 1-HR TECH

11  The stock outer cleaner cover and insert, minus the rubber gasket, gets reinstalled using the stock bolts, some blue Loctite, and a 3/16" Allen. He torques the bolts to 36-60 in-lbs. AIM

Everyone knows K&N makes air filter elements that pass more air than the stock H-D ones do, which means more horsepower. But did you know that it also makes great air cleaner housings? Case in point is the made-in-the-US chrome beauty we bolt onto a rubber-mounted Sportster in the accompanying photos. Named simply the #RK-3929 […]