aFe 54-12912-C Stage-2 Cold Air Intake for 2016-2021 BMW B58 3.0L

Vehicle Fitment

• 2016-2018 BMW 340i (Gas, L6-3.0L B58)
• 2016-2018 BMW 340i xDrive (Gas, L6-3.0L B58)
• 2017-2019 BMW 340i GT xDrive (Gas, L6-3.0L B58)
• 2017-2020 BMW 440i (Gas, L6-3.0L B58)
• 2017-2020 BMW 440i xDrive (Gas, L6-3.0L B58)
• 2017-2020 BMW 440i Gran Coupe (Gas, L6-3.0L B58)
• 2017-2020 BMW 440i xDrive Gran Coupe (Gas, L6-3.0L B58)
• 2017-2019 BMW M140i (Gas, L6-3.0L B58)
• 2017-2021 BMW M240i (Gas, L6-3.0L B58)
• 2017-2021 BMW M240i xDrive (Gas, L6-3.0L B58)

Features

• Magnum FORCE Stage-2 cold air intake engineered to increase airflow over stock
• Pre-oiled Pro 5R performance air filter with 7" tall conical design for high airflow
• 360° radial flow cotton gauze media for excellent filtration and power potential
• Roto-molded, dyno-tuned intake tube for smooth and efficient air delivery
• Carbon-fiber look vacuum-formed cover with auxiliary inlet for engine bay style
• Auxiliary inlet plug included for customization of airflow/noise balance
• Direct bolt-on installation - no cutting or drilling required
• All necessary clamps, couplings, and hardware included for installation

Specifications

• Part Number: 54-12912-C
• System Type: Magnum FORCE Stage-2 Cold Air Intake
• Air Filter Type: Pro 5R pre-oiled cotton gauze
• Filter Height: 7" tall conical
• Intake Tube Material: Roto-molded plastic
• Cover: Carbon-fiber look ABS plastic
• Fitment: Direct replacement intake system
• Engine Compatibility: Gas L6-3.0L B58 twin-turbo
• Drivetrain: RWD and xDrive AWD supported
• Estimated Gains: ~+9 HP and +10 lb-ft torque
• Carb/Emissions: Not CARB exempt - not legal in CA/CO/NY/ME

Included Components

• 1x Magnum FORCE Stage-2 Cold Air Intake assembly (54-12912-C)
• 1x Pro 5R performance air filter
• 1x Carbon-fiber look vacuum-formed intake cover
• 1x Dyno-tuned intake tube
• 1x Auxiliary inlet plug
• 1x Hardware & clamp kit

Product Description

The aFe 54-12912-C Magnum FORCE Stage-2 Cold Air Intake System is engineered as a high-flow performance upgrade for BMW vehicles equipped with the B58 3.0L twin-turbo inline-6 engine. This system replaces the restrictive stock air intake with a high-flow Pro 5R pre-oiled air filter and dyno-tuned intake tube to increase airflow, improve throttle response, and deliver noticeable gains in horsepower and torque. The carbon-fiber look vacuum-formed cover with auxiliary air inlet enhances under-hood aesthetics and helps guide air into the intake system.

Installation is straightforward with a direct bolt-on design that uses factory mounting points and requires no cutting or drilling. All necessary hardware, couplings, and clamps are included for a hassle-free upgrade. The tall, conical Pro 5R air filter features 360° radial flow cotton gauze media for excellent filtration and performance. This intake system is not currently CARB exempt and is not legal for sale or use in California, Colorado, New York, or Maine; always verify local emissions requirements before purchase. Fitment is confirmed for a wide range of BMW 340i, 440i, M140i, and M240i models from 2016 through 2021 with the B58 3.0L engine.