The K&N 33-2428 is a panel-style replacement engine air filter for the BMW X6 3.0L L6, built on cotton gauze media that is washable, so it can be cleaned and reused instead of being discarded. The manufacturer lists this filter for the BMW X6 L6-3.0L F/I from 2008 to 2017. It is a direct swap for the first-generation E71 X6 air filter, and the manufacturer's K&N-branded replacement is built for high airflow while keeping filtration at levels intended to protect the engine, designed for high air flow while maintaining filtration levels critical to ensure long engine life.
Over the life of the car, the main reason to choose this filter over a stock paper element is avoiding repeat purchases. K&N's warranty for this filter is a No-Hassle Lifetime Limited warranty. Owners searching for a BMW X6 3.0L air filter upgrade or a K&N 33-2428 replacement typically weigh that lifetime warranty against a disposable filter that must be bought again at every service. The manufacturer does not publish a horsepower figure for this filter, so buy it for airflow, filtration, and reuse rather than for a guaranteed power gain. Fitment should be confirmed against your VIN, since the manufacturer's own blog describes this filter for the 2008 through 2016 BMW X6 3.0L L6, which differs from the product page's 2008–2017 range.
Yes. The manufacturer lists the 33-2428 as a washable cotton gauze panel filter, so it is designed to be cleaned and reused rather than replaced at each service.
The manufacturer's product page lists the BMW X6 L6-3.0L F/I from 2008 to 2017, while its blog post describes 2008 through 2016. Because the sources differ, confirm your exact year and engine with the manufacturer before ordering.
The manufacturer's general K&N installation guidance is relevant here. On BMWs with a tray-type airbox, hold the filter in place with your index fingers while inserting the cartridge into the housing so it does not fall out of the tray. If the lid resists closing, lubricating the back side of the tray with K&N air filter grease or an equivalent can reduce friction. Expect more clip force than with a stock foam-sealed filter, and if the pressure seems excessive or you see the air box bending, stop and recheck the installation. Make sure the lid is fully seated before fastening the clips, because forcing clips or screws onto a misaligned filter, lid, and base can break the airbox. Tools needed are basic: a clip or screwdriver for the airbox fasteners, and a rag to wipe the housing clean first.
