MMR Performance Cold Air Intake Kit for BMW B58 M140i, M240i, 340i, 440i
Transform the sound and response of your BMW B58 with the MMR Performance cold air intake kit. This high-flow, dual-entry induction kit is engineered for the B58-powered BMW M140i, M240i, 340i and 440i and is one of the most sought-after BMW B58 intake upgrades for drivers who want sharper throttle response, faster turbo spool, a deeper induction roar and a cleaner, smarter engine bay. Perfect for stock and tuned cars, this BMW B58 air intake removes the factory airbox restrictions to let your turbo breathe.
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Why choose this BMW B58 intake
- High-flow dual-entry cotton gauze air filter for maximum airflow
- Sculpted aluminium bell-mouth for smooth, accelerated intake velocity
- Real-world gains in responsiveness and turbo spool with addictive induction noise
- Optional crinkle-finish heat shield retains factory cold-air feed and blocks engine bay heat
- Carbon fibre support rods and billet aluminium brackets for strength and style
- Rubber-isolated mounts reduce NVH for refined daily use
- MMR laser-etched branding with durable anodised blue finish
- Complete fitting hardware included with quality stainless steel hose clips
- Direct fit, fully reversible, no cutting or permanent modification
Engineered for the BMW B58
At the heart of this intake is MMR’s dual-entry, high-flow cotton gauze filter seated in a precision aluminium bell-mouth. By eliminating the bottlenecks of the OE airbox, this BMW B58 induction kit supports higher airflow demands associated with tuning while delivering that rich, turbocharged intake sound enthusiasts love. The heat shield option keeps intake air cooler by sealing against hot air from the turbo and manifold while retaining the factory cold-air feed path. Billet mounts use rubber isolators to manage engine movement and keep unwanted vibration out of the cabin.
The result is a BMW M140i intake, BMW M240i intake, BMW 340i intake and BMW 440i intake solution that looks as good as it performs. The anodised finish resists corrosion, the carbon fibre support rods elevate the engine bay, and the whole kit installs in minutes with common tools.
Trusted by Nforcd and our customers
We run this kit ourselves and our customers consistently rate it for its quality, fitment and sound. If you want one of the best BMW B58 cold air intakes for daily driving and spirited use, this is a proven choice that delivers.
Compatibility
Designed for BMW models with the B58 engine:
| Series | Model Code | Year | Variant | Engine |
|---|---|---|---|---|
| 1 Series | F20 F21 | 2015 - 2019 | M140i, M140i xDrive | B58 |
| 2 Series | F22 F23 | 2015 - 2019 | M240i, M240i xDrive | B58 |
| 3 Series | F30 F31 | 2014 - 2019 | 340i, 340i xDrive | B58 |
| 4 Series | F32 F33 | 2014 - 2019 | 440i, 440i xDrive | B58 |
What’s included
- MMR Performance dual-entry cotton gauze air filter
- Aluminium bell-mouth intake section
- Billet aluminium mounting brackets with rubber isolators
- Carbon fibre support rods
- Full fitting hardware and stainless steel hose clips
- Optional crinkle-finish heat shield available
Fitting and support
Direct bolt-on installation with standard tools and fully reversible. For professional installation or a supplied and fitted price, book with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
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