MST B58 Gen2 Turbo Inlet Kit — BMW M340i (G20/G21, 2020–2024); M440i (G22/G23, 2021–2024); M440i (G26, 2022–2024); M240i (G42, 2022–2026); Z4 M40i (G29, 2020–2026); Toyota GR Supra 3.0 (A90/A91, 2020–2026) (BW-B5806)
Please note, MST Performance Intakes/Inlets are NOT CARB COMPLIANT and are for off road and racing use only. By purchasing an MST Performance intake, you understand that these may only be used for off road and racing use only for unregistered vehicles. Please check with your local, state, and federal laws to see if these products are legal for use in your area. By purchasing an MST Performance product, you understand and agree to these terms and accept all liability.
Vehicle Fitment
Part number: BW-B5806
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/G21 | B58 Gen2 | 2020–2024 | Match the listed engine and chassis. |
| BMW M440i | G22/G23 | B58 Gen2 | 2021–2024 | Match the listed engine and chassis. |
| BMW M440i | G26 | B58 Gen2 | 2022–2024 | Gran Coupe. |
| BMW M240i | G42 | B58 Gen2 | 2022–2026 | Match the listed engine and chassis. |
| BMW Z4 M40i | G29 | B58 Gen2 | 2020–2026 | Match the listed engine and chassis. |
| Toyota GR Supra 3.0 | A90/A91 | B58 | 2020–2026 | Match the listed engine and chassis. |
Requirements and exclusions
- Check actual turbo inlet/airbox connection; no B58 Gen3 applications established.
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.
We have developed the silicone turbo inlet kit for the BMW G-Series B58 3.0L engine.
Designed using high-grade silicone to replace the OEM plastic pipe and restrictive muffler, this kit delivers smoother interior airflow, enhanced turbo response, and increased power output.
Features
- Replaces restrictive OEM intake pipe design
- Enhanced turbo response and engine power output
- Can be installed alongside our MST drop-in replacement filter for maximized performance
- High heat-resistant silicone construction, significantly more durable than factory plastic
- Removes the OEM intake muffler
- Direct installation while retaining the OEM airbox
- No ECU tuning required
⚠️ Please make sure our product is compatible with your car before placing an order.
If you have any questions, please contact us.