Air intake for BMW M240i G42 B58 (2022-2026) 3.0L

High-Flow Cold Air Intake for 2022-2026 BMW 2 Series (B58/G42)

What it Does: Replaces the restrictive factory air box and corrugated plastic piping with a high-volume aluminum induction system to decrease intake air temperatures and increase mass airflow to the B58 turbocharger.

The Stock 2 Series Airflow Restriction

The factory intake system on the G42 M240i is engineered primarily for noise suppression and cost-efficiency rather than maximum volumetric efficiency. The OEM assembly utilizes a restrictive paper element filter housed within a plastic box that is prone to heat soak during aggressive driving or high-ambient temperature conditions. Furthermore, the stock corrugated intake bellows create internal air turbulence, disrupting the laminar flow required for optimal turbocharger spool and throttle response. This bottleneck limits the B58’s ability to reach its full thermal and power potential, especially when running higher-than-stock boost levels.

The Engineering Solution

This intake system utilizes mandrel-bent aluminum piping to provide a smooth, consistent internal diameter, significantly reducing drag and turbulence. The kit features a 360-degree inverted cone reusable filter, which provides a much larger surface area for filtration compared to the flat stock panel, allowing for higher CFM (Cubic Feet per Minute) ratings. To combat the radiant heat generated by the B58 engine, a specialized heat shield is included to isolate the air intake from the engine bay’s thermal pocket. This ensures the engine pulls cooler, denser air from the front of the vehicle, resulting in dyno-proven gains of up to 16hp and 28nm of torque without requiring a custom ECU recalibration.

Technical Specifications

Compatibility

• BMW 2 Series • 2022-2026 G42 B58 M240i
• BMW 2 Series • 2022-2026 G42 B58 M240i xDrive

The BMW Precision Standard

Designed specifically for the G-Series chassis, this intake maintains German engineering standards for fit and finish. The bolt-on design ensures no permanent modifications are required, maintaining sensor placement to prevent Check Engine Lights (CEL) while delivering a sharper, more aggressive induction note that highlights the B58's turbocharger acoustics.

Common Questions

Will this intake fit both RWD and xDrive 2022-2026 BMW M240i models?
Yes, this cold air intake is engineered to fit both the rear-wheel-drive M240i and all-wheel-drive M240i xDrive on the 2022-2026 G42 chassis with the 3.0L B58 engine.

Which engine is this intake designed for?
This system is built specifically for the 3.0L B58 inline-six engine (B58B30O1 / Gen 2 B58TU) found in the G42 M240i and M240i xDrive.

What is included with the intake kit?
The kit includes mandrel-bent aluminum intake piping, a 360-degree inverted cone reusable air filter, and a dedicated heat shield to isolate the filter from engine bay heat.

Does this intake require an ECU tune after installation?
An ECU recalibration is not required. The bolt-on design maintains factory sensor placement and delivers gains of up to 16 hp and 28 Nm of torque on the stock tune.

Are any permanent modifications needed to install this kit?
Installation is a direct bolt-on replacement for the factory air box and corrugated plastic piping, requiring no permanent modifications to your vehicle.