& DINAN – Carbon Fibre Cold Air Intake – BMW M240i / M340i (20–24

Unleash the full character of your B58-powered BMW with the Dinan Carbon Fibre Cold Air Intake, designed to elevate both performance and aesthetics. The factory intake system in the M240i and M340i is functional but uninspired—restricting airflow and muting the turbo’s natural sound. Dinan’s precision-engineered carbon fibre system corrects this with a semi-open design that flows 58% more air than stock, improving throttle response and top-end power while revealing a deep, sporty induction tone.

To achieve this performance leap, Dinan completely re-engineered the airbox—not just the lid. The lower box is 60% larger than stock, housing a custom high-flow filter with 40% more surface area for maximum airflow potential. Extensive testing refined the secondary open-air inlet, ensuring additional volume without heat-soak issues, even under demanding driving conditions.

The result is a carbon masterpiece that looks as good as it performs. The 2x2 gloss twill carbon fibre constructionenhances under-hood presentation while delivering consistent power gains and a signature Dinan sound.

Features & Benefits:

• +9 WHP / +8 lb-ft torque gains @ 6500 RPM on a stock vehicle

• 58% increase in airflow vs. factory intake

• 60% larger airbox for maximum air volume

• 40% larger filter area (82 in² → 115 in²) for optimum flow

• Enhanced induction sound with audible turbo spool and BOV noise

• Improved throttle response and engine efficiency

• 2x2 gloss carbon fibre lid and intake tube for OEM+ appearance

• No rise in intake temperatures – fully tested for heat management

• Compatible with G20 M340i & G42 M240i (without factory bracing)

• Quick, bolt-on installation – no tuning required

• SKU: D760-0052

Fitment Table: