BMW 4 Series (F32/F33/F36) Front-Mounted Open Cold Air Intake System with Reinforced Silicone Ducting | 4-Series Coupe, Convertible & Gran Coupe 440i – B58 I6 3.0L Turbo (2016-2020)

Unleash the full potential of your BMW 4 Series 440i (F32/F33/F36) with this Front-Mounted Open Cold Air Intake System, engineered to enhance airflow, turbo acoustics, and throttle response across the B58 3.0 L Turbo Inline-Six.

Specifically designed for the F3X 4 Series chassis, this system takes advantage of its wider front-end design and sport-focused aerodynamics to maintain a consistent supply of cool, dense air to the turbo — even under spirited driving. Constructed from high-temperature reinforced silicone, it delivers a smooth, unrestricted airflow path while minimizing turbulence, heat soak, and pressure loss for sharper, more responsive performance.

The open-cone filter design allows the B58 to breathe freely, increasing airflow volume and producing a more pronounced induction growl and turbo spool sound. Every throttle input feels more immediate, pairing the refined power delivery of the 440i with the exhilarating sound profile enthusiasts crave.

Installation is straightforward and fully reversible, utilizing factory sensor ports and ducting for a clean, OEM-plus fit and finish that elevates the 4 Series engine bay.

Key Features

• Reinforced silicone ducting – heat-resistant, flexible, and optimized for high-velocity airflow
• Front-mounted open-cone filter – draws in cooler ambient air for greater efficiency
• High-flow filter element – increases intake volume and amplifies turbo induction sound
• Complete hardware kit – includes stainless-steel band clamps and vibration-isolating rubber grommets
• Pre-cut sensor ports – direct plug-and-play compatibility with factory sensors and OE ducting
• No cutting or modifications required – fully reversible installation
• OEM+ finish – integrates seamlessly with the sleek, performance-driven 4 Series engine bay

Performance Benefits

• Sharper throttle response and faster turbo spool
• Increased airflow and cooler intake temperatures for consistent performance
• Stronger midrange torque and smoother acceleration
• Deep, aggressive induction tone with crisp blow-off acoustics
• Clean, motorsport-inspired under-hood appearance

FITMENT: BMW 4 Series F32 (Coupe) / F33 (Convertible) / F36 (Gran Coupé) 440i (2016–2019)

ENGINE COMPATIBILITY:  B58B30M0 / B58B30O1 3.0 L Turbocharged Inline-Six

NOTE: Always verify your vehicle’s engine code and model year before purchase to ensure correct compatibility. Make sure that all factory sensors and ducting are re-installed properly during installation for optimal performance and reliability.

Please refer to the “Fitment” section in the product description for compatibility details.