BMW M440i Performance Air Intake - Dinan - Dinan Cold Air - Carbon Fiber - `20-`26
BMW M440i Performance Air Intake - Dinan - Dinan Cold Air - Carbon Fiber - `20-`26
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BMW M440i Performance Air Intake - Dinan (2020-2026). This carbon fiber cold-air system replaces the stock airbox to deliver stronger flow, crisper response, and a more engaging turbo soundtrack.
Dinan reworks the entire lower box, enlarging volume by 60% and housing a 40% larger, free-flowing filter. A semi-open design with patterned secondary inlets partners with the factory duct to outflow stock by 58% while maintaining low inlet temps in testing. Expect improved throttle response and measured gains up to +9 WHP and +8 lb-ft on a stock vehicle. Compatible with cars with or without factory strut bracing and designed for straightforward installation.
Features
- 58% more airflow vs. stock; sharper throttle
- Carbon fiber semi-open box; 60% larger volume
- 40% larger custom filter (115 in² vs. 82 in²)
- Patterned secondary inlets help control inlet temps
- Fits 2020-2026 BMW M440i; works with factory bracing
Questions or ready to schedule install? Call Austin at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.
Ordering multiple items? Contact us for combined shipping discounts.
We install on premises at our Austin, TX and Los Angeles, CA locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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562-981-6800 (Signal Hill, CA)
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