aFe Power 50-70073R Momentum GT Cold Air Intake w/ Pro 5R for BMW B58

Vehicle Fitment

• 2017-2022 BMW 540i (RWD/xDrive, 3.0L I6 B58)
• 2017-2022 BMW 540i xDrive (AWD, 3.0L I6 B58)
• 2016-2022 BMW 740i (RWD/xDrive, 3.0L I6 B58)
• 2017-2022 BMW 740i xDrive (AWD, 3.0L I6 B58)
• 2020-2022 BMW 840i (RWD/xDrive, 3.0L I6 B58)
• 2020-2022 BMW 840i Gran Coupe (RWD/xDrive, 3.0L I6 B58)
• 2020-2022 BMW 840i xDrive (AWD, 3.0L I6 B58)
• 2018-2019 BMW X3 M40i (AWD, 3.0L I6 B58)
• 2018-2019 BMW X4 M40i (AWD, 3.0L I6 B58)

Features

• aFe Momentum GT cold air intake engineered for direct OE replacement
• Pre-oiled Pro 5R radial flow air filter with five layers of cotton gauze media
• 6" tall 360° radial flow design increases filtration surface area and airflow
• Unique one-piece sealed housing with clear sight window for easy filter inspection
• Heat-resistant XLPE intake tube and housing to reduce heat soak
• Dyno-tuned intake tube for optimized airflow and possible power gains
• Stainless-steel worm clamps and premium bellows coupling for secure installation
• Designed to use factory mounting locations - no cutting or drilling required
• Washable and reusable filter media simplifies maintenance

Specifications

• Brand: aFe Power
• Part Number: 50-70073R
• Series: Momentum GT
• Filter Type: Pro 5R pre-oiled cotton gauze radial flow
• Filter Height: ~6" radial flow element
• Approx. Airflow Gain: ~24% over stock intake
• Measured Flow: ~255 CFM @ 7" H2O
• Estimated Power Gains: Up to +9 HP & +18 lb-ft TQ
• Installation: Direct bolt-on using factory mounting points
• Emissions: Not CARB exempt - not legal in California, NY, ME, and other CARB states

Included Components

• 1x Momentum GT sealed intake housing
• 1x Pro 5R pre-oiled air filter element
• 1x Dyno-tuned XLPE intake tube
• 1x Bellows coupling
• Multiple stainless-steel worm clamps
• Mounting hardware

Product Description

The aFe Power 50-70073R Momentum GT Cold Air Intake System with Pro 5R filter is a high-flow, direct-fit performance upgrade engineered for BMW vehicles equipped with the 3.0L B58 inline-six turbo engine covering popular models like the 540i, 740i, and 840i from 2016 through 2022, as well as select X3/X4 M40i variants. This intake replaces the restrictive factory airbox with a pre-oiled Pro 5R radial flow filter, increasing airflow by approximately 24% over stock, delivering dyno-proven gains of up to +9 horsepower and +18 lb-ft of torque while improving throttle response and sound.

Constructed with a one-piece sealed housing made from heat-resistant XLPE and a dyno-tuned intake tube, the 50-70073R intake minimizes heat soak and delivers cooler, denser air to the engine for improved overall efficiency. Installation is simple using existing factory mounting points with no cutting or drilling required. A clear sight window allows quick visual inspection of the filter without disassembly, and premium stainless-steel hardware ensures a secure fit. Note: this intake is not CARB exempt and is not legal for sale or use in California and other CARB-regulated states.