MST Performance BMW B48 2.0T Cold Air Intake Induction Kit for G20 G21 G22 G23 G24 3 Series 4 Series 320i 330i 420i 430i - High-Flow Filter, Heat Shield, Bolt-On G2X

Transform the way your B48 breathes

Give your 2.0 turbo BMW the airflow it deserves with the MST air intake system engineered for the G2x chassis. This cold air upgrade unlocks razor-sharp throttle response, stronger pull through the mid-range and a purposeful turbo induction note that makes every drive more engaging. Ideal for daily drivers and remapped cars alike, it’s a simple, plug-and-play upgrade that replaces the restrictive factory airbox with a high-flow setup designed to feed your turbocharger cool, clean air.

Why enthusiasts choose this MST setup

• Dry nano-fibre cone filter for excellent filtration and rapid airflow
• Mandrel-formed aluminium inlet tube for smooth, turbulence-free flow to the compressor
• Precision-cut heat shield with textured black powdercoat to help reduce heat soak
• Uses OEM mounting locations for a tidy, secure and reversible installation
• Complete hardware pack included for a straightforward driveway fit
• Enhanced turbo spool, wastegate chatter and a deeper, sporty intake tone

Real-world gains you can feel

On our G20 320i running a Stage 1 calibration, we’ve seen up to +9 bhp and +15 Nm around 4,000 rpm. Results will vary by car and setup, but the consistent benefits are quicker response, improved breathing and a more engaging soundtrack.

Compatibility

Designed for BMW models with the 2.0-litre B48 petrol turbo engine on the G2x platform:

• 3 Series: G20, G21 — 320i, 330i
• 4 Series: G22, G23, G24 — 420i, 430i

What’s in the box

• MST dry nano-fibre performance filter
• High-flow intake tube
• CNC-cut heat shield, textured black finish
• All required brackets, fixings and fittings

Our experience

We run this MST CAI on our own B48 car and customer feedback has been excellent. Drivers report crisper pedal response, a livelier mid-range and that addictive whoosh on boost. The quality, fit and finish suit the BMW engine bay perfectly.

Professional installation

Prefer expert fitting? Book your install with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search terms to help you find the right upgrade

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Note: Power and torque improvements depend on vehicle condition and modifications. This kit is intended for B48 petrol turbo engines only.