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MST B58 Gen2 Cold Air Intake — BMW M340i (G20, 2020–2024); M240i (G42, 2022–2026) (BW-B5811)

Vendor: MST
SKU: BW-B5811
Product type: Air Intake
Regular price  $684.20 Sale price  $662.20
Product subtotal: $662.20
Kies-Motorsports MST MST BMW M340i 2020 B58 3.0L Cold Air Intake System (BW-B5811)
MST B58 Gen2 Cold Air Intake — BMW M340i (G20, 2020–2024); M240i (G42, 2022–2026) (BW-B5811)
Regular price  $684.20 Sale price  $662.20

Vehicle Fitment

Part number: BW-B5811

Match every detail in the same row. Listed years follow the stated manufacturer or market basis; an engine code by itself does not confirm fitment. Where no full range is established, confirm the model year and engine-bay layout before ordering.

Vehicle Chassis Engine / specification Supported years Application details
BMW M340i G20 B58 Gen2 2020–2024 Match the listed engine and chassis.
BMW M240i G42 B58 Gen2 2022–2026 Confirm actual engine generation.

Requirements and exclusions

  • Not compatible with B58 Gen3 / redesigned turbo inlet. MST says the M240i is not affected by the 2025 M340i change.
  • ⚠️ Special Compatibility Notice: This intake is not compatible with 2025+ B58 Gen3 3.0 models. This is because the intake pipe section connected before the turbo has been redesigned, making it impossible to install our intake system. However, Supra and M240i models are not affected.

Confirm fitment with Kies using your model year, engine, production date and a photo of the intake area when a restriction or unconfirmed application is listed.

+ 14

horsepower*

@ 5700 RPM
+ 29

Torque (Nm)*

@ 3500 RPM

Features

  • HDPE material airbox protects against heat soaking
  • 152mm reusable high airflow filter with 6" intake tube
  • Improved performance & better throttle response
  • More aggressive and sporty induction sound
  • Direct fit to stock vehicle and no need to remap
  • The engine air filter should be cleaned every 20,000 km of usage and should be replaced at 60,000 km of usage
Installation Manual (BW-B5811)

⚠️ Special Compatibility Notice:
This intake is not compatible with 2025+ B58 Gen3 3.0 models. This is because the intake pipe section connected before the turbo has been redesigned, making it impossible to install our intake system. However, Supra and M240i models are not affected.

Please make sure our product is compatible with your car before placing an order. If you have any questions, please contact us.

*Due to potential variations in model years (especially transitional years) and different regional specifications by country, we highly recommend contacting us and providing a photo of your engine bay for verification before purchasing to ensure accuracy.

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