In addition to performance air filters, K&N® manufactures a variety of other protection and performance products, including air intake systems, oil filters, fuel filters, cabin air filters, and home air filters. Over the course of five decades, we’ve built a reputation for exceptional quality and customer service that millions of customers trust.
All K&N products undergo rigorous testing to ensure that they adhere to demanding quality standards. We stand behind our products with some of the most extensive warranties in the aftermarket.
Horsepower and torque claims are based on testing of an actual vehicle on a dynamometer before and after a K&N product has been installed. Horsepower/torque testing is performed on Dyno Jet 248 and SuperFlow 880E dynamometers, which measure actual brake horsepower and torque at the wheel(s) receiving power from the drive train. For most intake systems, dynamometer charts are available on the individual product pages under “Resources”.
K&N performs all airflow testing on a SuperFlow Corporation SF-1020 flow bench. The SF-1020 is a computerized flow bench capable of measuring airflow rates up to 1020 cubic feet per minute (cfm) at test pressures of up to 65 inches of water.
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