aFe Power 50-70073D Momentum GT Cold Air Intake w/ Pro DRY S for BMW B58

Vehicle Fitment

• 2017-2023 BMW 540i (RWD/xDrive, 3.0L I6 B58)
• 2016-2022 BMW 740i (RWD/xDrive, 3.0L I6 B58)
• 2020-2025 BMW 840i (RWD/xDrive, 3.0L I6 B58)
• 2020-2025 BMW 840i Gran Coupe (RWD/xDrive, 3.0L I6 B58)
• 2018-2019 BMW X3 M40i (AWD, 3.0L I6 B58)
• 2019 BMW X4 M40i (AWD, 3.0L I6 B58)

Features

• aFe Momentum GT cold air intake engineered for direct OE replacement
• Pre-oiled Pro DRY S radial flow air filter with synthetic media
• 6" tall 360° radial flow design increases airflow over stock
• Patented one-piece sealed housing with clear sight window for filter inspection
• Heat-resistant XLPE intake tube and housing minimize heat soak
• Dyno-tuned tube design for optimized airflow and potential gains
• Stainless-steel worm clamps and bellows coupling for secure fitment
• Designed to use factory mounting locations - no cutting or drilling
• Washable and reusable filter media for simplified maintenance

Specifications

• Brand: aFe Power
• Part Number: 50-70073D
• Series: Momentum GT
• Filter Type: Pro DRY S pre-oiled synthetic media
• Filter Height: ~6" radial flow element
• Airflow Gain: ~20% over stock intake
• Measured Flow: ~245 CFM @ 7" H2O
• Estimated Power Gains: Up to +9 HP & +16 lb-ft TQ
• Installation: Direct bolt-on using factory mounting points
• Emissions: Not CARB exempt - not legal for sale/use in California and similar CARB states

Included Components

• 1x Momentum GT intake housing
• 1x Pro DRY S 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 50-70073D Momentum GT Cold Air Intake System with Pro DRY S filter is a high-flow performance upgrade engineered specifically for BMW vehicles equipped with the 3.0L B58 inline-six turbo engine from 2016 through 2025 model years. This intake replaces the restrictive stock airbox with a large, pre-oiled Pro DRY S radial flow filter that increases airflow by approximately 20% and supports potential gains of up to +9 horsepower and +16 lb-ft of torque compared to OE. The washable and reusable filter simplifies maintenance and enhances engine breathing without the need for oiling.

Constructed with a heat-resistant XLPE housing and a dyno-tuned intake tube, this system reduces heat soak and ensures cooler, denser air reaches the engine for improved efficiency. A patented, one-piece sealed housing with a clear sight window allows for quick visual inspection of the filter without disassembly, and premium stainless-steel hardware ensures a secure installation using factory mounting points with no cutting or drilling required. Note: this intake is not CARB exempt and is not legal for sale or use in California and other CARB-regulated states.