Eventuri Gen3 Carbon Intake System - BMW G2X M40i B58N2 (2025+ 48V Mild Hybrid)
The 2025 refresh gave the B58 a new name and a 48V mild-hybrid system. Eventuri gave it an intake to match. The Gen3 G2X carbon intake is a ground-up design for the updated B58TU2 platform, built on the same principles that made Eventuri's earlier B58 systems a benchmark: a fully sealed pre-preg carbon fiber airbox, a smooth-bore carbon inlet tube, and a high-flow cone filter engineered to work together rather than cobbled from universal parts.
One thing to know before you order: this system is designed exclusively for 2025+ G2X models with the 48V Mild-Hybrid B58TU2 engine. It does not fit earlier B58 or B58TU1 configurations. Confirm your vehicle's production date and engine variant before purchasing. Earlier cars have their own Eventuri systems: the pre-November 2018 MAF sensor version and the post-November 2018 non-hybrid version.
How the Eventuri Gen3 G2X B58 Intake Works
The sealed carbon airbox draws from two independent cold-air sources. The primary feed pulls from the factory front intake location. A secondary duct taps the wheel arch area, adding ambient air volume without exposing the filter to engine heat. The airbox is as large as the engine bay allows, with a recessed section that leaves room for a strut brace.
From the filter, airflow moves through a smooth pre-preg carbon inlet tube that starts at 111mm (4.4 inch) internal diameter and tapers to the OEM turbo elbow, replacing the convoluted factory tract. The continuous internal surface and gradual geometry reduce turbulence and pressure drop before air reaches the turbocharger. A gold reflective heat shield deflects radiant heat from nearby engine components and helps keep intake temperatures consistent through extended hard driving.
What's Included
- Pre-preg carbon fiber sealed airbox
- Pre-preg carbon fiber inlet tube (111mm ID)
- Bespoke high-flow dry cone air filter
- Gold reflective heat shield
- CNC-machined temperature sensor mount
- CNC-machined breather adapters
- Laser-cut stainless steel mounting brackets
- OEM-specification silicone reducer and clamps
Key Features
- 100% pre-preg carbon fiber airbox and inlet tube
- Fully sealed airbox isolates the filter from radiant engine bay heat
- Dual cold-air feed: factory front inlet plus a secondary wheel arch duct
- 111mm ID smooth-bore carbon inlet tube reduces turbulence and pressure loss
- High-flow dry cone filter with more filtration area than the factory filter
- Gold reflective heat shield limits heat soak under sustained load
- Recessed airbox clears an aftermarket strut brace
- CNC-machined temperature sensor mount and breather adapters for OEM-level integration
- Installs to OEM mounting points with no permanent modification
- Designed and engineered in the UK by Eventuri
Specifications
- Brand: Eventuri
- Part Number: EVE-G20B58N2-CF-INT
- Product Type: Carbon fiber intake system (Gen3)
- Material: Pre-preg carbon fiber
- Engine: B58TU2 (B58N2) 3.0L turbo inline six, 48V mild hybrid
- Inlet Tube: 111mm (4.4 inch) ID, tapering to the OEM turbo elbow
- Production Dates: 2025+ only
- Returns: Non-returnable
Vehicle Fitment
Fits 2025-2026 BMW G2X M40i models equipped with the 48V Mild-Hybrid B58TU2 engine only:
- BMW 3 Series / G20 M340i (2025-2026): RWD and xDrive
- BMW 4 Series Coupe / G22 M440i (2025-2026): RWD and xDrive
- BMW 4 Series Convertible / G23 M440i (2025-2026): RWD and xDrive
- BMW 4 Series Gran Coupe / G26 M440i (2025-2026): RWD and xDrive
Not compatible with pre-2025 B58 or B58TU1 models. Verify your production date and engine configuration before ordering.
Emissions and Legality
This intake does not have a CARB Executive Order. It is not legal for sale or use in California, or in states that follow CARB rules for aftermarket parts, on emissions controlled vehicles.
Installation Notes
No permanent modification is required. The system installs to OEM mounting points and connects to the existing factory sensors.
- Remove the factory airbox and intake tract.
- Install the CNC-machined breather adapters and temperature sensor mount in the factory locations.
- Position the carbon airbox using the OEM mounting points and laser-cut stainless brackets.
- Connect the carbon inlet tube to the turbo inlet with the silicone reducer and clamps, then route both cold-air feeds.
- Fit the gold heat shield and confirm all sensor connections are secure before starting the engine.
This is a final sale item, so confirm your production date before ordering.
