K&N Engineering - knn33-3171 - Replacement High-Flow Air Filter

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 No-Hassle Lifetime 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

Brief Description: The K&N Engineering knn33-3171 High-Flow Air Filter is a washable, reusable replacement filter designed for installation in the factory air box. Its layered, oiled cotton media is engineered to improve airflow, capture contaminants, and provide an increase in horsepower while supporting engine protection.

Key Features & Performance Benefits:

• High-flow design: Engineered to improve airflow and support increased horsepower.
• Washable and reusable: Designed for repeated use and to last for the entire lifespan of the vehicle.
• Layered oiled cotton media: Helps capture contaminants while supporting efficient airflow.
• Easy replacement: Designed to install into the factory air box and backed by K&N's No-Hassle Lifetime Limited Warranty.

Key Product Specifications & Technical Data:

• Brand: K&N Engineering
• Part number: knn33-3171
• Product type: Automotive replacement air filter
• Filter construction: Layered, oiled cotton media
• Serviceability: Washable and reusable
• Installation location: Factory air box
• Warranty: K&N No-Hassle Lifetime Limited Warranty
• Associated product: 99-5000 Filter Care Service Kit Aerosol

What's Included in the Box: One K&N Engineering replacement High-Flow Air Filter.

Fitment: Fits 2021 BMW M4, 2021 BMW M3, 2022 BMW M4, 2022 BMW M3, and 2023 BMW M3 applications as listed by the supplier.

Fitments:
2021 BMW M3 Base
2021 BMW M3 Competition
2021 BMW M4 Base
2021 BMW M4 Competition
2022 BMW M3 Base
2022 BMW M3 Competition
2022 BMW M3 Competition xDrive
2022 BMW M4 Base
2022 BMW M4 Competition
2022 BMW M4 Competition xDrive
2023 BMW M2 Base
2023 BMW M3 Base
2023 BMW M3 Competition
2023 BMW M3 Competition xDrive
2023 BMW M4 Base
2023 BMW M4 Competition
2023 BMW M4 Competition xDrive
2023 BMW M4 CSL
2024 BMW M2 Base
2024 BMW M3 Base
2024 BMW M3 Competition
2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2024 BMW M4 Base
2024 BMW M4 Competition
2024 BMW M4 Competition xDrive
2025 BMW M2 Base
2025 BMW M3 Base
2025 BMW M3 Competition
2025 BMW M3 Competition xDrive
2025 BMW M4 Base
2025 BMW M4 Competition
2025 BMW M4 Competition xDrive
2025 BMW M4 CS
2026 BMW M2 Base
2026 BMW M3 Base
2026 BMW M3 Competition
2026 BMW M3 Competition xDrive
2026 BMW M4 Base
2026 BMW M4 Competition
2026 BMW M4 Competition xDrive

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