K&N Engineering has been around for decades working with gauze air filters. K&N started with universal pod filters and grew ever more sophisticated. Things really took off when K&N branched out to the automotive industry, first hoping to persuade racers using K&N filters on their race machinery to protect and enhance the performance of the family bike hauler with a K&N filter. The automotive standard remains a dry-paper throwaway filter. In some cases, a K&N automotive air filter is more expensive than the stock throwaway filter, but the oiled filter protects better and saves money in the long run. With an oiled gauze filter, you clean and oil it many times. Eventually, as stock filter systems for powersports got better, K&N looked for areas to expand. Then came intake systems and other products. Throughout all this history, K&N remains committed to the off-road powersports market.
The company kindly allows Dirt Wheels to use their dyno when we have products that we need to test. Most frequently, those products are exhaust systems. K&N has no ties with exhaust companies, so the dyno is considered neutral ground. While we were at K&N for a dyno test, we were offered a brief tour of the facility and were shocked at the size and scope of the operation. Since we found the tour fascinating, we chose to shoot photos along the way so we could share.