The K&N 33-2422 is a panel-style, drop-in replacement for the factory engine air filter on the 2009-2014 Honda Fit 1.5L L4 fuel-injected engine. It is designed for high air flow while maintaining filtration levels critical to ensure long engine life. Its cotton gauze media is washable and reusable, so you clean and re-oil it instead of buying a new paper element every service interval. The manufacturer lists an overall filter efficiency of up to 99%.
Compared with a stock paper filter, the appeal is a reusable element that keeps filtering while flowing more freely, backed by a No-Hassle Lifetime Limited warranty. For buyers searching for a 2009 Honda Fit 1.5L drop-in air filter, a K&N 33-2422 Honda Fit intake upgrade, or a reusable Fit air filter, this is a direct fit with no modification. Confirm your model year and engine before ordering, since fitment details vary across sources.
The manufacturer lists it for the 2009-2014 Honda Fit with the 1.5L L4 fuel-injected engine. Some sources show broader year ranges, so confirm your exact year and engine with the manufacturer before ordering.
The manufacturer specifies a re-oiling amount of 0.54 oz (16 ml). Use a filter oil formulated for oiled air filters and apply it evenly to the cotton gauze.
The manufacturer lists a No-Hassle Lifetime Limited warranty on the 33-2422.
This is a drop-in filter, so no cutting or modification of the factory airbox is needed. Open the airbox, remove the stock paper element, note its orientation, and seat the K&N in the same position before closing the housing. Because the element is reusable, it is worth cleaning and re-oiling it at your regular service intervals using the manufacturer's listed oil amount of 0.54 oz. Confirm the exact fit and seating against your vehicle before you tighten the airbox clips.
