DINAN Closed Carbon Fibre Cold Air Intake – BMW 230i / 330i / 430i (2016–2021)

DINAN Closed Carbon Fibre Cold Air Intake – BMW 230i / 330i / 430i (2016–2021)

The DINAN Closed Carbon Fibre Cold Air Intake for the BMW B46 / B48 4-cylinder engine dramatically improves airflow, throttle response, and turbocharger efficiency while maintaining a sealed, factory-style design. Following the engineering success of the B58 intake, this system takes the same proven approach — increasing airbox volume, enlarging the filter area, and optimizing airflow paths for smooth, unrestricted performance.

Crafted entirely from premium carbon fibre, the intake not only boosts power but also transforms the engine bay with a striking motorsport aesthetic. By eliminating restrictive factory elements such as internal baffles and Helmholtz chambers, the Dinan intake promotes smoother flow, enhanced turbo sound, and consistent performance across the rev range.

The result: measurable power gains of +6 HP and +6 lb-ft torque at 5000 RPM on a stock engine, with improved response and a deeper, sportier induction note.

Performance Benefits:

• Power Gains: +6 HP / +6 lb-ft torque @ 5000 RPM

• Larger Airbox Volume: 30% increase over stock for improved airflow and turbo efficiency

• Increased Filter Area: 34% larger (102.1 in² vs 76.3 in² stock) for maximum flow capacity

• Improved Throttle Response: Reduces lag and enhances engine responsiveness

• Sportier Induction Sound: More pronounced turbo and intake tone

• Optimized Carbon Fibre Intake Tube: Eliminates turbulence-causing factory resonators and restrictions

• Completely Sealed Design: Protects against heat soak for consistent performance

• Direct Bolt-On Installation: No tuning or permanent modifications required

• 50-State Emissions Legal (CARB EO D-176-56 | 2019–2021 F2x/F3x 230i / 330i / 430i)

Technical Features:

• Full carbon fibre construction — lightweight, durable, and heat-resistant

• Free-flowing injection-moulded air mass meter housing (20% larger than stock)

• Designed for long-term durability with UV-resistant coating to prevent discolouration

• CNC-precision fittings for perfect OEM fitment

• Compatible with factory sensors and mounting points

Vehicle Compatibility:

BMW (B46 / B48 4-Cylinder Turbo Engines):

• BMW F22 / F23 230i / 230i xDrive – 2018–2021

• BMW F30 330i / 330i M Sport – 2016–2019

BMW F32 / F33 / F36 430i / 430i xDrive – 2017–2020

SKU:    D760-0048-A