BMW 840i Performance Air Intake - Dinan - Carbon Fiber - `17-`23
BMW 840i Performance Air Intake - Dinan - Carbon Fiber - `17-`23
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BMW 840i Performance Air Intake - Dinan - Carbon Fiber. A precision upgrade for B58 8 Series models that boosts airflow, sharpens throttle response, and enriches turbo induction sound.
Dinan replaces the restrictive airbox and resonator with a larger housing, semi-open lid, and smooth carbon fiber tube. The direct-flow path reduces turbulence for better efficiency and stronger low-end response, while the high-flow, washable filter supports consistent performance.
Features
- Max gains: +7 WHP, +12 lb-ft at 2500 RPM (stock)
- 66% larger airbox (≈150 to 250 in³)
- 20% more flow (416 vs 506 CFM @ 15" H2O)
- Carbon fiber tube with reduced restriction
- Semi-open lid for pronounced induction sound
- Washable, reusable cotton gauze filter
- Works with Dinan Turbo Inlet D760-0061 when used with Intake D760-0068 + Fit Kit D763-0100
Questions or ready to install? Call our teams in Austin, TX or the Los Angeles, CA area for installation and customization. Texas: 512-982-9393. California: 562-981-6800.
Buying multiple items? Contact us for shipping discounts.
We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
We're here to help!
Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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