K&N High-Flow Original Lifetime Engine Air Filter for 2019–2026 BMW & Toyota (33-3136) — Washable, Reusable, Increases Airflow

This direct-fit replacement is built to improve airflow compared with standard paper filters while lasting for the life of your vehicle. Designed to drop into the factory airbox without modification, the K&N High-Flow Original Lifetime Air Filter reduces recurring filter replacements and is backed by K&N’s limited lifetime warranty. It’s a simple upgrade for drivers who prioritize consistent performance, easy maintenance, and fewer disposable parts heading to landfills.

How does this K&N filter boost engine performance?

The filter uses a multi-layer cotton gauze media that allows more air to pass through the intake while still trapping contaminants. Increased airflow can help engines breathe more efficiently, which may support throttle response and overall drivability under normal conditions.

• High-flow cotton media engineered for greater air passage
• Four-layer construction for filtration and airflow balance
• Factory-fit design preserves stock intake geometry
• Tested in demanding environments to ensure consistent results

What maintenance does the reusable filter require?

Unlike disposable paper units, this K&N element is serviceable and ready for periodic cleaning and re-oiling to restore peak performance. Under typical highway use it only needs attention about every 75,000 miles, though interval depends on driving conditions.

• Pre-treated and ready to install out of the box
• Clean and re-oil as needed; K&N cleaning kits available separately
• Inspection recommended more frequently in dusty or off-road environments
• Repeats of cleaning cycles extend lifetime versus throwaway filters

Will this filter fit my vehicle and how easy is installation?

The 33-3136 is made to replace the factory air filter in a long list of BMW and Toyota platforms from 2019 through 2026; check the provided compatibility list for exact models. Installation requires only removing the stock filter and seating the K&N element into the original airbox—no trimming or modifications.

• Direct-fit for numerous BMW 2, 3, 4 Series, Z4, and selected Alpina and Toyota Supra models
• Installs in minutes using the vehicle’s existing airbox and fasteners
• No tools beyond basic household tools in most cases
• Retains factory fit and finish while enabling higher airflow

What protections and benefits come with choosing K&N?

K&N combines durable construction and materials with a long-standing warranty and U.S. manufacturing. The washable design reduces disposable-filter waste and the product is engineered for longevity so owners save on replacement costs over time.

• Limited lifetime warranty for the life of the vehicle (limitations apply)
• Manufactured with rugged materials and precision construction in the USA
• Washable and reusable to lower environmental impact and total ownership cost
• Designed and validated using motorsport and real-world durability testing

Who this is for: The K&N 33-3136 is intended for owners of compatible 2019–2026 BMW, Alpina, Toyota Supra, and related models who want a straightforward, durable upgrade to their engine intake. It suits drivers who prefer low-maintenance, reusable parts, want to reduce ongoing replacement expenses, and value products developed with performance testing. If you drive frequently in dusty or severe conditions, plan on inspecting the filter more often; if you want an easy bolt-in improvement that’s serviceable and long-lived, this K&N filter is a practical choice.