MST Performance Cold Air Intake Kit for BMW 1, 2, 3 & 4 Series B58 3.0T (M140i M240i 340i 440i) 2016+ | Induction Upgrade

High-flow induction system for BMW B58 3.0 litre turbo models

Give your B58-powered BMW the crisp response, addictive turbo soundtrack and proven performance it deserves. This MST intake system replaces the restrictive factory airbox with a precision engineered setup that feeds cool air straight to the compressor, delivering real gains you can feel and hear on the road.

On stock and tuned cars alike, independent dyno testing shows maximum increases of 12 to 14 bhp, with sharper throttle pick-up and a deeper, more purposeful intake note. It looks the part too thanks to a stealth black powder coated heat shield and inlet pipe, paired with a high-flow dry filter that needs no oiling.

Why enthusiasts choose this upgrade

• Frees up airflow for the B58 straight-six, improving response and mid-range pull
• Enhanced induction tone and turbo spool for a more engaging drive
• Dry pleated performance element - easy to maintain, no oil required
• Robust powder coated shield and intake tube for a factory-plus finish
• Direct cold air feed to reduce heat soak and keep performance consistent
• True bolt-on install with comprehensive fitting hardware and clear instructions
• Ideal complement for Stage 1 and Stage 2 remaps, downpipes and exhaust upgrades

Compatibility

Designed for 2016 onwards BMW models fitted with the 3.0 litre B58 turbocharged petrol engine:

• BMW 1 Series M140i - F20 F21
• BMW 2 Series M240i - F22 F23
• BMW 3 Series 340i - F30 F31
• BMW 4 Series 440i - F32 F33 F36

What you receive

• Black powder coated heat shield
• Black powder coated intake pipe
• Red high-flow dry cone filter
• Silicone coupler and clamps
• Full fitting kit with step-by-step guide

Tried and loved by MJ Modifications

We have installed this MST setup on our own cars and customer vehicles, and feedback has been consistently positive. Owners report better drivability, a noticeable lift in mid-range urgency and a rich induction sound that really brings the B58 to life. Fit and finish are spot on, making it a quality upgrade that pairs perfectly with software and exhaust changes.

Professional fitting available

Straightforward for competent DIYers with basic tools. Prefer us to handle it. Book installation with MJ Modifications in Warwickshire. Request a fitted price at info@mjmodifications.co.uk.

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Note: Quoted power gains are maximum figures and will vary with vehicle condition, supporting modifications and fuel quality.