The ARM B58 Intake isn’t just another lookalike B58 intake — it’s engineered to outperform. Featuring full 3.75” T6061 aluminum piping throughout, it stands as the largest B58 intake on the market, delivering more airflow to meet the demands of stock, tuned, or fully built B58 engines.

When paired with the ARM B58 Turbo Inlet, this system forms a complete induction solution that helps your B58 breathe easier, spool faster, and support higher horsepower levels.

CONSTRUCTION

At the heart of the ARM B58 Intake is a massive inverted air filter, providing 186 cubic inches of surface area — allowing superb airflow while maintaining impressive filtration thanks to its multi-media filter material.

The filter is shielded from excessive engine heat by a durable aluminum heat shield, which comes standard with a powder-coated black cover or an optional clear cover for a striking engine bay look.

The 3.75” T6061 aluminum MAF pipe flows directly to the turbo inlet, significantly larger than OEM and many aftermarket options, delivering more unrestricted airflow to the turbocharger. The system uses a 6-layer reinforced silicone coupler to connect seamlessly to either the factory turbo inlet or, for maximum performance, the ARM B58 Turbo Inlet.

The T6061 aluminum MAF pipe is a full 3.75" throughout, 14% larger than OEM and similar aftermarket intakes for the B58, providing more airflow to the B58's turbo. 



The ARM B58 MAF pipe is connected to the B58 inlet via the 3.75" 6-layer reinforced silicone coupler.  The ARM B58 Intake is designed to connect to either the OEM turbo inlet or for maximum airflow the ARM B58 Turbo Inlet.

F chassis Applications

BMW 1 Series
• 2016+ F20 F21 (B58 engine) M140i/140iX

BMW 2 Series
• 2017-2021 F22 F23 (B58 engine) M240i/240ix

BMW 3 Series
• 2016-2018 F30 (B58 engine) 340i/340iX
G20 Owners: This intake does not fit the new 2019+ G20 M340.

BMW 4 Series
• 2017-2020 F32 F33 F36 (B58 engine) 440i/440iX
 

What's included:
• 1x ARM B58 Air Filter
• 1x ARM B58 Heat Shield
• 1x ARM B58 Heat Shield Aluminum Cover
• 5x Heat Shield Cover Screws and Washers
• 1x Heat Shield Securing Nut
• 1x ARM B58 MAF Pipe
• 1x ARM B58 Silicone Coupler
• 4x ARM Clamps