The K&N CM-8016 is a round, straight drop-in replacement for the Can-Am Defender 800, built from oiled cotton gauze rather than disposable paper. It has a rubber top and arrives pre-oiled. The manufacturer says it is washable and reusable, so you clean and re-oil it at service intervals instead of buying a new element each time.
The case for paying more than a stock filter rests on airflow and reuse. The manufacturer says high-flow design can help horsepower, acceleration, and throttle response without typically requiring fuel-management changes, so it suits a stock-ECU Defender that needs a bolt-in intake upgrade. Dust is the trade-off. Owners on user forums report mixed results, with some finding fine dust gets through and others running a pre-filter sleeve on dusty trail rides. The manufacturer lists Defender 800 applications from 2016 through 2026, so confirm your model year and trim before ordering.
The manufacturer states the CM-8016 comes pre-oiled and ready to install. When it is time to re-oil after cleaning, the manufacturer's approved method is to apply K&N filter oil evenly along the crown of each pleat, let it wick for about 20 minutes, and touch up any light areas until the color is uniform.
The manufacturer says the filter is designed to work without typically requiring fuel-management modifications.
The manufacturer's application listing covers Defender 800 models from 2016 through 2026, while the product name references 2016-2017. Confirm your exact model year and trim with the manufacturer before ordering.
The manufacturer lists an installation time of about 5 to 10 minutes and a screwdriver as the typical tool requirement. Because the filter is designed to seat in the factory airbox, check the rubber sealing bead and the airbox sealing surfaces before dropping it in, since any gap lets unfiltered air bypass the media. Owners on user forums recommend inspecting the filter before dusty rides and cleaning it more often in fine-dust conditions.