K&N 33-3171 High-Flow Replacement Air Filters for 20-26 BMW M2/M3/M4 S58 L6-3.0L

Vehicle Fitment

• 2021-2026 BMW M3 (G80, S58 3.0L) -- Base, Competition, Competition xDrive
• 2024-2026 BMW M3 CS (G80, S58 3.0L)
• 2021-2026 BMW M4 (G82, S58 3.0L) -- Base, Competition, Competition xDrive
• 2021-2026 BMW M4 (G83 Convertible, S58 3.0L) -- Competition xDrive
• 2024-2026 BMW M4 CS (G82, S58 3.0L)
• 2022-2023 BMW M4 CSL (G82, S58 3.0L)
• 2023-2026 BMW M2 (G87, S58 3.0L)

Fitment Notes

• S58 engine only -- dual air box requires 2 filters (both included in this kit)
• Drop-in replacement -- installs directly into factory air boxes, no modifications required
• OEM cross reference: BMW 13718095805 (right) / 13718095807 (left)
• Pre-oiled and ready to install out of the box
• Cleaning kit: K&N 99-5000 (sold separately)

Features

• Up to 99% filtration efficiency
• 4 layers of oiled cotton gauze -- increased airflow and contaminant capture
• Washable and reusable -- engineered to last the life of the vehicle
• Clean every 75,000 miles under normal highway driving conditions
• Saves up to $125 vs. purchasing multiple disposable OE filters over 200,000 miles
• No-Hassle Lifetime Limited Warranty

Specifications

• Part Number: 33-3171
• Filter Line: High-Flow Original
• Shape: Panel
• Material: Oiled Cotton Gauze
• Height: 1.125" (29mm)
• Outside Length: 10.188" (259mm)
• Outside Width: 9.5" (241mm)
• Efficiency: Up to 99%
• Washable: Yes
• Cleaning Interval: Every 75,000 miles
• OEM Cross Reference: BMW 13718095805 / 13718095807
• Package Contents: 2 filters
• Weight: 2 lbs. (0.9 kg)
• Warranty: No-Hassle Lifetime Limited

Included Components

• 2x K&N High-Flow Replacement Air Filters (33-3171)

Product Description

The K&N 33-3171 is a pair of High-Flow Original replacement air filters for BMW M-series vehicles equipped with the S58 3.0L twin-turbo inline-6, covering the G80 M3 (2021-2026), G82/G83 M4 (2021-2026), G87 M2 (2023-2026), M3 CS (2024-2026), M4 CS (2024-2026), and M4 CSL (2022-2023). The S58 uses a dual air box configuration -- one filter per bank -- requiring two filters per service, both of which are included in this kit. Each filter drops directly into the factory air box with no modifications required.

K&N's four-layer oiled cotton gauze media provides up to 99% filtration efficiency while flowing more air than the factory paper element, supporting the S58's powerband with a higher-volume air supply. The filters are washable and reusable -- cleaning is required only every 75,000 miles under normal highway driving conditions, making these a lifetime replacement for the factory disposable filters. Over 200,000 miles, K&N estimates savings of up to $125 compared to purchasing multiple OE paper filters at MSRP. Backed by K&N's No-Hassle Lifetime Limited Warranty.