K&N Engineering 33-3134 High-Flow Replacement Air Filter for Select BMW X3 and X4 Models

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product! K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty. Associated products: 99-5000 Filter Care Service Kit Aerosol

• REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
• Million Mile Limited Warranty

Upgrade your vehicle’s factory air intake system with the K&N Engineering 33-3134 High-Flow Replacement Air Filter. This washable and reusable automotive air filter uses layered, oiled cotton media to improve airflow while helping capture engine-damaging contaminants. Its drop-in design is engineered to fit the original factory air box, making installation straightforward without requiring permanent modifications to the intake system.

The K&N 33-3134 is designed to support improved horsepower and responsive engine performance while providing dependable filtration for everyday driving. Unlike disposable filters that require frequent replacement, this reusable filter is engineered to last for the lifespan of your vehicle when properly cleaned and serviced. It is also backed by K&N’s 10-Year/Million Mile Limited Warranty, helping provide long-term value and reduced maintenance waste.

• Reduces Waste: Reusable construction helps reduce the number of disposable air filters and packages sent to landfills.
• Serviceable Design: Washable and reusable filter media supports long-term use with the appropriate K&N Filter Care Service Kit.
• Factory Air Box Compatibility: Drop-in replacement design installs into the original air box for convenient application.
• Warranty Coverage: Backed by K&N’s 10-Year/Million Mile Limited Warranty.

Key Product Specifications & Technical Data:

• Brand: K&N Engineering
• Part Number: 33-3134
• Product Type: High-flow replacement air filter
• Filter Media: Layered, oiled cotton
• Serviceability: Washable and reusable
• Installation Location: Factory air box
• Application Type: Automotive
• Warranty: 10-Year/Million Mile Limited Warranty

What’s Included: One K&N Engineering 33-3134 High-Flow Replacement Air Filter. K&N Filter Care Service Kit 99-5000 is available separately.

Fitment: Fits select 2020–2024 BMW X3 and 2020–2023 BMW X4 applications. Verify vehicle year, model, engine, and original equipment filter compatibility before ordering.

Features:

• High-Flow Airflow Performance: Layered, oiled cotton media is engineered to improve airflow and support increased horsepower.
• Washable and Reusable: Durable serviceable construction is designed for long-term use and can help reduce replacement filter waste.
• Easy Factory Air Box Installation: Drop-in replacement design fits the original air box without permanent intake modifications.
• Long-Term Warranty Protection: Backed by K&N’s 10-Year/Million Mile Limited Warranty for added ownership confidence.

Fitments:
2020 BMW X3 M
2020 BMW X3 M40i
2020 BMW X4 M40i
2021 BMW X3 M40i
2021 BMW X4 M40i
2022 BMW X3 M40i
2022 BMW X4 M40i
2023 BMW X3 M40i
2023 BMW X4 M40i
2024 BMW X3 M40i
2024 BMW X4 M40i
2025 BMW X4 M40i

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1