Eventuri BMW B58 Carbon Fibre Performance Cold Air Intake Induction Kit - M140i, M240i, 340i/340ix, M340i/M340ix, 440i, M440i/M440ix (F20 F21 F22 F23 F30 F31 F32 G20 G21 G22 G23), xDrive Compatible

Carbon fibre air induction upgrade for BMW 40i B58 models

Looking to unleash your 3.0 turbo straight-six with a premium carbon air system that actually delivers? This Eventuri system is a proven intake upgrade for the B58 platform. Expect a tangible step up in response, a richer induction note and repeatable gains of 12 to 15 bhp and 14 to 18 lb ft when compared to the factory airbox. The result is sharper acceleration, stronger mid-range punch and cooler charge temperatures on the road and on track.

What makes it different

Eventuri’s carbon Venturi housing and large surface area filter create a smooth, accelerated airflow path to the turbo. A purpose-built carbon scoop draws fresh air from behind the kidney grilles, while comprehensive double-layer heat shielding separates the intake from engine bay heat. It is a high-quality carbon fibre airbox solution with OEM-plus fit and finish that looks as good as it performs.

• Measured gains: 12 to 15 bhp and 14 to 18 lb ft with crisper throttle feel
• Carbon Venturi pod for high-velocity, low-turbulence airflow to the MAF tube
• Front carbon scoop feeds dense, cool air from the grille area
• Dual-layer thermal shielding to combat radiant and conductive heat
• MAF-integrated carbon tube and CNC-machined boss for stable readings
• Premium prepreg carbon, laser-cut brackets and a high-flow cone filter

Kit contents

• Prepreg carbon fibre filter housing with integrated MAF tube
• High-flow double cone air filter
• Aluminium cowl to smooth inlet entry
• Prepreg carbon front scoop and filter shroud
• CNC machined MAF boss
• Main and secondary double-layer heat shields
• Laser cut mounting hardware

Real-world benefits

On standard and lightly tuned B58 cars we have fitted, the intake delivers crisper part-throttle behaviour, stronger pull through the rev range and an addictive induction sound with turbo spool on lift-off. Our customers consistently praise the fitment quality and the way the car feels livelier without compromise in drivability.

Vehicle fitment

• BMW 1 Series F20 F21 M140i
• BMW 2 Series F22 F23 M240i
• BMW 3 Series F30 F31 340i and 340ix
• BMW 3 Series G20 G21 M340i and M340ix
• BMW 4 Series F32 440i
• BMW 4 Series G22 G23 M440i and M440ix

Compatible with rear-wheel drive and xDrive all-wheel drive models.

How it works

The reverse-mounted filter sits inside a tapered carbon pod that narrows into the integrated MAF tube. This geometry accelerates airflow and maintains orderly flow to the turbo inlet, helping the turbo work more efficiently. The carbon scoop continuously feeds cool ambient air from the front grille, while the dual-layer shields reduce soak from the exhaust side. The combination reduces pressure drop and intake temperatures for consistent performance.

Fitment check

We verify compatibility before dispatch. Add your UK registration or the last 7 of your VIN at checkout and we will confirm fitment for your specific B58 model.

Professional installation

Prefer expert fitting? MJ Modifications in Warwickshire can install this intake for you. Request a quote at info@mjmodifications.co.uk.

Part number and warranty

Part number: EVE-B58-CF-INT
Manufacturer: Eventuri
Warranty: One year Eventuri warranty

Search terms customers use

BMW 40i carbon induction, B58 airbox upgrade, M140i performance intake system, M240i carbon intake UK, 340i intake upgrade F30, G20 M340i intake kit, 440i carbon air intake, G22 M440i intake, B58 snorkel scoop, BMW turbo intake sound, BMW straight-six intake, B58 ram air scoop, BMW F series intake, BMW G series intake, xDrive AWD intake, best intake for B58 UK, Eventuri carbon airbox, BMW M Performance intake alternative, M140i induction sound, M340i tuning parts UK, 440i mods UK, B58 performance parts UK.