Dinan Cold Air Intake – 2016-2025 BMW 540i/740i/840i/X5 40i/X6 40i/X7 40i

Overview

Have you been longingly looking at the 2/3/4 series and become jealous of all the aftermarket options available to them? Have you reached out and pled with your favorite manufacturer to produce solutions to bigger bodied platforms so you too can enjoy added performance and sound? Have you thought all of it was in vain and your requests were ignored? That is not the case. Dinan has heard your inquiries and is pleased to offer an intake for the B58 powered ‘G’ chassis cars of the 5/6/7/8 and X series.

Like its smaller bodied ‘G’ chassis siblings, the Dinan carbon fiber intake for the bigger B58 vehicles utilizes a semi-open design that incorporates multiple auditory ports on a revised lid, so induction sounds of the turbo are more evident. Beyond the additional sound openings employed in the new design, the immense resonator assembly used in the stock setup to reduce unwanted turbo sounds is also eliminated with the Dinan system. Together, these elements allow the engine to nearly achieve its full sound potential but when paired with the optional turbo inlet (and fit kit) the full intake tract to the turbo is effectively replaced for further audio enhancement.

While sound is undoubtedly important for a large swath of consumers, performance enhancements are equally as important to others. Common to all Dinan intake design, improvements upon the factory design by increasing flow via a larger airbox and filter element were made. These standard adjustments improv throttle response (and acceleration) and lessen the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately producing a more potent intake, they are not the only variables in creating a more efficient design either. The resonator assembly that limited auditory enjoyment also created a more turbulent airflow path by introducing alternative stunted pathways. The Dinan carbon fiber intake tube eliminates these flow disruptions with a smoother, direct flow path for maximum potential efficiency and an overall 20% greater flow when compared to stock. With these flow and efficiency improvements also comes greater power, particularly off the line, culminating in maximum gains of +7 WHP & +12 lb-ft at 2500 RPM on a completely stock vehicle.

Built to elicit a more pronounced sound, provide improved performance with appreciable power gains, and imbue the engine bay with some carbon class — the Dinan B58 carbon fiber intake for the ‘G’ chassis 5/6/7/8/X series is a modification must for any enthusiast looking to have it all.

NOTE: For B58 ‘G’ chassis 5/6/7/8/X owners that wish to run the Dinan Turbo Inlet (D760-0061) for maximum sound, the appropriate Dinan Intake (D760-0068) as well as the associated Inlet Fit Kit (D763-0100) are REQUIRED. The Dinan Turbo Inlet will NOT mate with the factory intake system.

Features:

• More Power: Maximum gains of +7 WHP & +12 lb-ft @ 2500 RPM without additional modifications
• A pronounced sporty sound courtesy of a semi-open design
• Improved throttle/turbo response compared to stock resulting in quicker acceleration
• Flows 20% more than stock (stock: 416 CFM, Dinan: 506 CFM in 15-inches of H2O)
• 66% larger volume air box (stock: 150in3, Dinan: 250in3) for increased breathability
• 44% increase in filter area (stock: 56.75.3in², Dinan: 82in²) for optimum flow
• Optimized carbon fiber intake tube with less restriction
• Washable and reusable high flow pleated cotton gauze filter
• Quick and easy installation

Specs

Service Parts

Dinan Replacement Filter for Carbon Fiber Intake – 2020-2023 BMW X5M/X6M and 2017-2025 BMW 540i/740i/840i
F95/F96/G01/G02/G05/G06/G07/G11/G12/G14/G15/G16/G30/G32
Part# D401-0030

Emissions

7

This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.

Tech Resources

Instructions – D760-0068_R3.pdf

X3/X4 M40i FITMENT: D760-0068 is ONLY compatible with the 2018-2019 model years for the X3 & X4 M40i. In 2020 the air box changed to a different configuration which affects fitment of the Dinan intake. INLET NOTICE: For B58 ‘G’ chassis 5/6/7/8/X owners that wish to run the Dinan Turbo Inlet (D760-0061) for maximum sound, the appropriate Dinan Intake (D760-0068) as well as the associated Inlet Fit Kit (D763-0100) are REQUIRED. The Dinan Turbo Inlet will NOT mate with the factory intake system.

Warranty Information

Dinan Factory Matching (4yr/50k) Warranty: See Details

Applications

2017-2023 BMW 540I Base /3.0L L6 Sedan
2017-2023 BMW 540I XDRIVE Base /3.0L L6 Sedan
2018-2019 BMW 640I XDRIVE GRAN TURISMO Base /3.0L L6 Hatchback
2016-2022 BMW 740I Base /3.0L L6 Sedan
2017-2022 BMW 740I XDRIVE Base /3.0L L6 Sedan
2020-2025 BMW 840I Base /3.0L L6 Convertible
2020-2025 BMW 840I Base /3.0L L6 Coupe
2020-2025 BMW 840I GRAN COUPE Base /3.0L L6 Sedan
2020-2025 BMW 840I XDRIVE Base /3.0L L6 Convertible
2020-2025 BMW 840I XDRIVE Base /3.0L L6 Coupe
2020-2025 BMW 840I XDRIVE GRAN COUPE Base /3.0L L6 Sedan
2018-2019 BMW X3 M40i /3.0L L6 Sport Utility
2019 BMW X4 M40i /3.0L L6 Sport Utility
2019-2023 BMW X5 xDrive40i /3.0L L6 Sport Utility
2020-2023 BMW X5 sDrive40i /3.0L L6 Sport Utility
2020-2023 BMW X6 xDrive40i /3.0L L6 Sport Utility
2020-2021 BMW X6 sDrive40i /3.0L L6 Sport Utility
2019-2022 BMW X7 xDrive40i /3.0L L6 Sport Utility

Flow Bench Testing

The Dinan Intake System dramatically out performs the factory intake and improves upon the stock closed box design with our own semi-open one. The Dinan Intake System is at least 20% less restrictive compared to the factory intake.. By allowing the engine to breathe, the intake system lowers the intake air temperature, and allows for performance gains upwards of 8 WHP on a completely stock vehicle.

Dyno Testing

Stock Tuning – Stock Airbox vs Dinan CAI – 93 Octane

Power and Torque at the Wheel

Power and Torque at the Crank