MST Performance Cold Air Intake + Turbo Inlet Kit
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MST Performance Cold Air Intake + Turbo Inlet Kit - BMW M240i xDrive (G42) / M340i (G20/G21) / M440i (G22/G23/G26)
MST Performance builds intake systems around real airflow gains rather than just a bigger filter, and this kit brings that approach to the BMW M240i xDrive, M340i and M440i range. SKU BW-B5812 pairs a heat resistant HDPE airbox with an enlarged turbo inlet, giving the turbo more air to work with and a noticeably sharper throttle response.
This listing covers the BMW M240i xDrive (G42), M340i (G20), M340i Touring (G21), M440i (G22), M440i Convertible (G23) and M440i Gran Coupe (G26).
Note: the enlarged inlet suits OEM and hybrid turbos, so confirm your turbo specification before ordering.
Key Features
- HDPE airbox construction resists heat soak
- 152mm reusable high airflow filter with 152mm (6 in) intake tube
- Golf ball dimpled inner surface for smoother airflow
- Enlarged diameter turbo inlet
- Direct fit, no remap required
- More aggressive turbo induction sound
- Clean filter every 20,000 km, replace at 60,000 km
Vehicle compatibility, OEM part numbers and fitment notes are provided in the tabs above. Please confirm your vehicle's chassis and turbo configuration before ordering.
Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| BMW | M240i xDrive | G42 | - |
| BMW | M340i | G20 | - |
| BMW | M340i Touring | G21 | - |
| BMW | M440i | G22 | - |
| BMW | M440i Convertible | G23 | - |
| BMW | M440i Gran Coupe | G26 | - |
Technical Specifications
| Spec | Value |
|---|---|
| Airbox Material | HDPE (High Density Polyethylene) |
| Air Filter Diameter | 152 mm, reusable, high airflow |
| Intake Tube Diameter | 152 mm (6 in) |
| Filter Surface Design | Inner golf-ball textured surface for optimised airflow |
| Turbo Compatibility | OEM and hybrid turbos (enlarged diameter design) [VERIFY exact hybrid turbo specifications compatible] |
| Filter Maintenance Interval | Clean every 20,000 km; replace at 60,000 km |
No instructions available for this product.

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