Eventuri Carbon Intake BMW G2X,Gen 3 M340i, M440i 25+
The Eventuri Carbon Intake for the BMW G2X B58 Gen 3 is an evolution of Eventuri's G20 B58 system, updated specifically for the 2025+ M340i and M440i platform. The carbon fibre inlet tube starts at 111mm (4.4in) internal diameter and tapers smoothly down to the OEM turbo elbow, replacing the flexible, convoluted stock section that creates turbulence in the flow path. Because the airbox sits next to the exhaust manifold, it is fully sealed to isolate the filter from engine bay heat, with a gold-reflective heat shield on the manifold side to cut radiant heat transfer. During development Eventuri also found an opening between the wheel arch and chassis, so a scoop at the rear of the airbox draws in a secondary cold air feed alongside the stock front duct, reducing restriction on the turbo. The scoop is visible behind the front wheel once fitted.
Filter Type:
Kit Includes:
- 1x carbon fibre airbox with dual cold air feeds and internal splash guard
- 1x bespoke high-flow dry cone filter
- 1x carbon fibre inlet tube with 111mm opening ID
- 1x CNC-machined temperature sensor mount
- 1x heat shield with gold reflective backing
- Laser-cut stainless steel brackets
Key Features:
- Secondary cold air feed from the wheel arch reduces the restriction of the single stock duct
- Fully sealed airbox with laser-cut sealing plate and rubber strip - heated air cannot enter the filter chamber
- Gold reflective heat shield on the exhaust manifold side combats radiant heat soak
- Airbox volume maximised within the available space, with a recessed section to clear strut braces
- 100% prepreg carbon fibre construction with no fibreglass - smooth internal surface for laminar airflow
- Smooth 111mm ID carbon inlet tube replaces the convoluted OEM tube and tapers to the stock turbo inlet
- CNC-machined stainless steel ring reinforces the tube clamping area
- Double-layered non-woven dry cone filter, ISO tested to OEM filtration standards, cleanable and stable at high temperatures
- Filter has a larger filtration area than the stock panel filter, with an internal flow guiding cone to prevent a stagnation point
Compatible With:
- BMW G20 / G21 M340i Gen 3 (2025+)
- BMW G22 / G23 / G26 M440i Gen 3 (2025+)
