Air intake for BMW 840i G15 G14 B58 (2019-2024) 3.0L

High-Flow Cold Air Intake for 2019-2024 BMW 8 Series (B58 / G14 G15 G16)

What it Does: Replaces the restrictive factory air box and pleated paper filter with a high-velocity aluminum induction system designed to reduce intake air temperatures (IATs) and improve throttle response on the 3.0L B58 engine.

The Stock 8 Series Shortcoming

The OEM induction system on the B58-powered 840i is engineered primarily for noise suppression and cost-effective filtration. It utilizes a convoluted plastic intake tract and a thick paper filter that creates significant turbulence and pneumatic resistance at higher RPMs. This design causes air starvation during spirited driving and is prone to heat soak because the closed plastic housing retains ambient engine bay heat. This thermal retention results in hotter air entering the combustion chamber, which triggers the ECU to retard ignition timing, effectively robbing the engine of potential horsepower.

The Engineering Solution

This kit utilizes a high-flow aluminum pipe that maintains a consistent internal diameter to maximize laminar flow and minimize pressure drops across the induction cycle. The 360° inverted cone filter provides a massive increase in surface area compared to the stock panel filter, allowing for significantly higher CFM (cubic feet per minute) throughput. A precision-cut heat shield is included to isolate the filter element from the manifold's radiant heat, ensuring a denser oxygen charge. The reusable filter media ensures long-term filtration efficiency without the flow degradation seen in disposable OEM filters, while the aluminum construction offers superior durability against engine bay heat cycles.

Technical Specifications

Compatibility

• BMW 8 Series G15 Coupe (2019-2024)
• BMW 8 Series G14 Convertible (2019-2024)
• BMW 8 Series G16 Gran Coupe (2019-2024)
• Fits BMW 840i and 840i xDrive models equipped with the B58 3.0L Turbo engine.

The BMW Precision Standard

This intake is precision-engineered for the B58 platform, ensuring optimized airflow sensor (MAF) readings and a direct bolt-on installation without triggering Check Engine Lights (CEL). It delivers a mechanical, unfiltered induction sound that complements the G-Series' refined performance without sacrificing the vehicle's sophisticated European drivability.