BMW 640i Air Filter - Dinan - High Flow Drop-in Replacement (2017–2023). A direct, drop-in upgrade for the factory air box that improves airflow while retaining dependable filtration.

Made from four layers of oiled cotton gauze, this filter reduces pressure drop versus paper media so the engine breathes easier and runs efficiently. It’s washable and reusable to help cut ongoing filter costs. When a full intake isn’t in the plan, this factory-fit piece delivers performance-minded flow with quick, straightforward installation.

Features

• 4-layer oiled cotton gauze; washable and reusable
• Direct replacement for the stock filter; quick install
• Fits select 2017–2023 BMW 640i; confirm via application dropdowns
• Less restrictive than stock to support performance and efficiency
• Dimensions: 270mm x 218mm (10.63" x 8.58"); OEM cross refs: 13718577170, 13718691835, 13718621473, 13718577171, 13718454387, 13712454387

Have questions or want help with fitment? Call our Austin shop at 512-982-9393 (TX) or our Los Angeles area shop at 562-981-6800 (CA). We offer professional installation and customization services at both locations in Austin, Texas and the Los Angeles, California area.

Thinking about multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov