MST Performance Cold Air Intake Induction Kit for BMW X3 M40i & X4 M40i (G01/G02) B58 3.0T 20182020

High-Flow Air Intake System for BMW X3 M40i and BMW X4 M40i - G01 G02 - B58 3.0 Petrol

Unlock sharper throttle response, stronger mid-range pull and a richer turbo soundtrack with this model-specific intake upgrade for the B58 3.0-litre turbocharged straight-six. Designed for the BMW X3 M40i G01 and BMW X4 M40i G02, this performance air intake replaces the restrictive factory setup with a free-flow system that feeds cooler, cleaner air to the compressor while keeping an OEM-plus appearance in the engine bay.

Key benefits

• Engineered specifically for the B58 3.0 petrol turbo in X3 M40i G01 and X4 M40i G02
• Dry nano-fibre cone filter for excellent filtration and high airflow without oiling
• CNC laser-cut heat shield with textured black powder coat for a tidy factory-style finish
• Smooth, high-flow intake pipework to reduce restriction and improve response
• Retains OEM mounting points and original turbo inlet for a secure, rattle-free fit
• Enhanced intake sound so you can hear turbo spool and throttle lift-offs more clearly
• Direct bolt-on installation with comprehensive fitting hardware included

We have installed and run these systems on customer B58 cars and our own builds. Fitment is straightforward, build quality is excellent and feedback on drivability and sound has been consistently positive. If you want an OEM-looking upgrade that delivers a more engaging drive, this intake is a proven choice.

What you get

• Dry nano-fibre performance air filter
• High-flow intake pipework
• Textured black powder-coated heat shield
• Full fitting kit and fixings

Vehicle compatibility

For BMW models equipped with the B58 3.0 turbocharged petrol engine:

• BMW X3 M40i G01 - 2018, 2019, 2020
• BMW X4 M40i G02 - 2018, 2019, 2020

Notes: Utilises the original airbox mounts and retains the factory turbo inlet. No permanent modifications required.

Professional installation

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

Why this is a great upgrade

This intake system improves breathing efficiency on the B58 platform, complements software tunes such as Stage 1 and Stage 2, and adds character without looking out of place. The dry filter is serviceable, the heat shield helps manage intake temperatures, and the streamlined pipework reduces turbulence. It is the ideal bolt-on for enthusiasts seeking an OEM-plus solution that supports power potential while delivering addictive turbo sounds.

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