Dinan Carbon Fiber Cold Air Intake for Select BMW 2016-2021 M240i, 340i, 440i (B58) - D760-0046-A

Fits select 2016-2021 BMW M240i, 340i, and 440i models (including xDrive and Gran Coupe) equipped with the B58 engine.

Maximize your B58 engine's potential with the Dinan carbon fiber semi-open cold air intake. This system replaces the restrictive factory intake with a high-flow design engineered to reduce turbocharger strain and improve throttle response. By eliminating the factory intake tube's baffling and Helmholtz chamber, Dinan provides an unimpeded airflow path that increases efficiency and allows the natural turbo and intake sounds to be heard.

This system features an optimized carbon fiber intake tube and a 30% larger airbox housing a high-performance filter with 34% more surface area than stock. The result is a dyno-proven gain of 15 HP and 13 lb-ft of torque at 6000 RPM on an otherwise stock vehicle. The injection-molded Air Mass Meter (AMM) housing is 8% larger than the OE component, further reducing pressure drops and ensuring the engine breathes freely.

• Direct bolt-on installation for a factory-like fit
• Lightweight, high-strength carbon fiber intake tube
• 34% increase in filter area (102.1 in² vs 76.3 in² stock)
• 30% larger airbox volume for increased breathability
• 8% larger injection-molded AMM housing
• Semi-open design provides a pronounced, sporty induction sound
• CARB EO D-176-56 (applies to 2019-21 F2x/F3x M240i/340i/440i only)
• Manufacturer Part Number: D760-0046-A