aFe Power 54-76309 Momentum GT Pro5R Cold Air Intake for 16-21 BMW B58 3.

Vehicle Fitment

• 2016-2018 BMW 340i (Gas I6 3.0L Turbo B58)
• 2016-2019 BMW 340i xDrive (Gas I6 3.0L Turbo B58)
• 2017-2020 BMW 440i (Gas I6 3.0L Turbo B58)
• 2017-2020 BMW 440i xDrive (Gas I6 3.0L Turbo B58)
• 2017-2021 BMW M140i/M240i (Gas I6 3.0L Turbo B58)

Features

• Momentum GT Pro 5R high-flow cold air intake engineered for enhanced performance and throttle response
• Large pre-oiled Pro 5R 5-layer cotton gauze air filter for superior filtration and airflow
• One-piece sealed housing with auxiliary air inlet captures cool, dense air
• Clear sight window allows quick visual inspection of the filter without removal
• CAD-designed roto-molded intake tube for optimized airflow and reduced restrictions
• Premium stainless steel T-bolt clamps and reinforced silicone couplings for secure installation
• Washable and reusable filter media to reduce long-term maintenance costs
• Direct bolt-on design - no cutting or drilling required

Specifications

• Part Number: 54-76309
• Brand: aFe Power Momentum GT Pro 5R Series
• Air Filter Type: Pre-oiled 5-layer cotton gauze, washable & reusable
• Housing: One-piece sealed roto-molded polyethylene with auxiliary inlet and sight window
• Intake Tube: CAD-designed, dyno-tuned roto-molded plastic
• Approx. Gains: +13 HP / +13 lbs-ft torque*
• Flow Increase: Up to ~28 % over stock intake*
• Emissions: Not CARB exempt - not legal for sale/use in CA and similar states

Included Components

• 1x Sealed intake housing with auxiliary inlet
• 1x Pre-oiled Pro 5R performance air filter
• 1x Roto-molded intake tube
• Premium stainless steel T-bolt clamps
• Reinforced silicone couplings
• Urethane plug for auxiliary inlet
• All required mounting hardware

Product Description

The aFe Power 54-76309 Momentum GT Pro 5R Cold Air Intake System is a performance-focused upgrade engineered specifically for BMW vehicles equipped with the turbocharged B58 3.0L inline-6 engine, including 340i, 340i xDrive, 440i, 440i xDrive, and M140i/M240i models from 2016 through 2021. This intake replaces the restrictive factory airbox with a sealed one-piece housing and oversized Pro 5R air filter to maximize cool, dense air delivery into the engine, improving breathing and throttle response. A clear sight window allows quick visual checks without disassembly, making routine maintenance easier.

Featuring a CAD-designed roto-molded intake tube and premium hardware, the 54-76309 delivers measurable performance gains - with up to approximately +13 HP and +13 lbs-ft of torque and up to ~28 % increased airflow over the stock intake - while maintaining dependable fitment and a clean engine-bay appearance. Installation is straightforward with a direct bolt-on design requiring no cutting or drilling. This intake is not CARB exempt and therefore is not legal for sale or use in California and other similarly regulated states. Fitment confirmed through 2021; 2022-2025 coverage unconfirmed at time of listing.