Not to be outdone by the performance side of the equation the B58 intake also is completely made up of carbon fiber unlike 6 cylinder intakes of the past where a mix of materials was used. Not only is the intake completely carbon construction but the quality of the material has been improved over previous generations as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to present well, perform well, and last the duration, the Dinan B58 carbon fiber cold air intake is a modification that is a must for any high-performance build.

• 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) for optimum flow
• 50 State Emissions Legal (partial application list): CARB EO D-176-56 (2019-21 F2x/F3x M240i/340i/440i Only)
• Free flowing injection molded Air Mass Meter housing (8% larger then stock)
• Improved throttle response
• Larger volume air box (30% larger than stock) that completely seals for maximum insulation from power robbing heat
• More Power: + 15 HP @ 6000 RPM & + 13 lb-ft @ 6000 RPM (+ 13 WHP & + 11 WTQ) without additional modifications
• Optimized carbon fiber intake tube
• Quick and easy installation
• Sportier Sound