aFe POWER 31-10270 Magnum FLOW Pro DRY S Air Filter for 16-20 BMW

Vehicle Fitment

• 2017-2019 BMW 230i (F22/F23, B46 2.0L Turbo I4)
• 2017-2019 BMW 230i xDrive (F22/F23, B46 2.0L Turbo I4)
• 2016-2018 BMW 330e (F30, B48 2.0L Gas/Hybrid)
• 2017-2018 BMW 330i (F30/F31, B46 2.0L Turbo I4)
• 2017-2019 BMW 330i GT xDrive (F34, B46 2.0L Turbo I4)
• 2016-2018 BMW 340i (F30, B58 3.0L Turbo I6)
• 2016-2018 BMW 340i xDrive (F30, B58 3.0L Turbo I6)
• 2017-2019 BMW 340i GT xDrive (F34, B58 3.0L Turbo I6)
• 2017-2018 BMW 430i (F32/F33, B46 2.0L Turbo I4)
• 2017-2018 BMW 430i Gran Coupe (F36, B46 2.0L Turbo I4)
• 2017-2020 BMW 440i (F32/F33, B58 3.0L Turbo I6)
• 2017-2020 BMW 440i xDrive (F32/F33, B58 3.0L Turbo I6)
• 2017-2018 BMW 440i xDrive Gran Coupe (F36, B58 3.0L Turbo I6)
• 2017-2018 BMW M240i (F22/F23, B58 3.0L Turbo I6)
• 2017-2018 BMW M240i xDrive (F22/F23, B58 3.0L Turbo I6)

Features

• Magnum FLOW Pro DRY S high-flow dry synthetic air filter media
• Oil-free 3-layer progressive porosity filtration media
• Washable and reusable for long service life
• 100 % polyurethane frame for OE-style fit and durability
• Deep rounded open pleats for increased usable surface area
• Progressive urethane bump seal for tight, leak-free fit
• Outflows stock paper filter for enhanced performance
• Direct drop-in installation - no modifications needed

Specifications

• Part Number: 31-10270
• Filter Type: Pro DRY S, oil-free synthetic media
• Frame Material: 100 % polyurethane
• Fitment: OE replacement filter for listed BMW models
• Media Layers: 3 progressive porosity synthetic layers
• Reusable: Yes - washable
• Pleat Count: Approximately 25mm deep rounded pleats
• Flow Increase: Up to ~36 % more than stock filter

Included Components

• 1x aFe POWER Magnum FLOW Pro DRY S Air Filter (31-10270)

Product Description

The aFe POWER 31-10270 Magnum FLOW Pro DRY S Air Filter is a high-performance,oil-free direct replacement filter engineered for select BMW 2-Series, 3-Series,4-Series, and M240i models equipped with B46, B48, and B58 turbocharged enginesfrom 2016 through 2020. Featuring a 3-layer Pro DRY S synthetic media, thisfilter simplifies maintenance by eliminating the need for oiling while deliveringexcellent airflow and filtration balance. The robust polyurethane frame and deeprounded pleat design provide increased usable surface area for superior airflowand dust holding capacity compared to stock paper elements.

Designed for straightforward installation into the factory airbox, the31-10270 provides an immediate performance benefit with improved enginebreathing and throttle response. Washable and reusable, it is ideal for dailydrivers and enthusiasts seeking a long-lasting, high-quality OE replacementthat enhances airflow without complex modifications.