Your KTM 790/890 Duke is designed to give you heart-pounding power and throttle you can feel. Keep exceptional power at your fingertips with a K&N performance Air Filter for your bike. K&N Engineering is the world's leading manufacturer of washable performance air filters. K&N was founded in Riverside, California in the early 1960's by Ken Johnson and Norm McDonald. Ken and Norm (K&N) sold motorcycles and motorcycle parts and supported a large K&N factory race team. This racing experience identified a need for better performing air filters. In 1969, K&N invented the reusable high flow cotton air filter.
Upgrade your Paper OEM Filter with a High Quality Cotton Element from the most reputable air filter manufacturer on the planet.