MMR Performance Cold Air Intake Induction Kit for BMW B58 (M140i, M240i, 340i, 440i) F20 F21 F22 F23 F30 F31 F32 F33 2014-2019 - Dual-Entry High-Flow with Heat Shield Option

MMR Twin-Feed Induction System for BMW F-Series 3.0 Turbo B58

Give your B58 straight-six the breath of fresh air it deserves. This uprated open intake from MMR swaps the restrictive factory airbox for a twin-feed, free-flow setup that delivers sharper throttle response, faster spool, and a richer turbo soundtrack on every drive. Ideal for both standard and mapped cars, it is a direct, reversible fit for the F-series 1 Series, 2 Series, 3 Series and 4 Series with the 3.0 turbo B58 engine.

Why enthusiasts choose this upgrade

• High surface area cotton gauze cone filter for outstanding airflow and filtration
• CNC machined aluminium velocity stack for smooth, accelerated intake charge
• Twin-feed design to maximise air supply to the turbo for crisp response and addictive induction noise
• Optional heat shield with crinkle finish to help keep intake temps down while retaining the OE cold-air feed
• Carbon fibre support rods and billet brackets for strength and a premium engine bay look
• Rubber-isolated mounts to control NVH for comfortable daily use
• Durable anodised finish with subtle laser etching
• Stainless hardware included. No cutting. Fully reversible

Engineered for the B58-powered F-chassis

The heart of this system is MMR’s dual-entry cone working with a precision velocity stack that removes the bottlenecks of the stock airbox and snorkel. The result is a freer-breathing 3.0 turbo that feels more eager off the line and pulls harder through the revs, all while adding that sought-after whoosh on throttle and flutter on lift. Add the optional heat shield for improved thermal management in stop-start traffic and spirited road use.

Fitment

Suits BMW F-series models with the B58 3.0 turbo petrol engine:

• 1 Series F20 F21 2015 to 2019 M140i and M140i xDrive
• 2 Series F22 F23 2015 to 2019 M240i and M240i xDrive
• 3 Series F30 F31 2014 to 2019 340i and 340i xDrive
• 4 Series F32 F33 2014 to 2019 440i and 440i xDrive

What’s in the box

• MMR twin-entry cotton gauze cone filter
• Aluminium velocity stack intake section
• Billet mounting brackets with rubber isolators
• Carbon fibre support rods
• Full fitting kit with stainless clamps
• Optional heat shield available

Tried by us. Loved by our customers

We run this intake on our own cars and the feedback from owners is consistent. Quality fitment, superb sound, and a noticeable improvement in response. It looks the part and performs exactly as a premium intake should.

Installation and support

Straight bolt-on with basic tools and entirely reversible. Prefer professional installation or a supply and fit package. Book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

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