BMW M240i Performance Air Intake - Dinan - Cold Air Intake G2x/G4x Mx40i PEX - `23-`26
BMW M240i Performance Air Intake - Dinan - Cold Air Intake G2x/G4x Mx40i PEX - `23-`26
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BMW M240i Performance Air Intake - Dinan - Cold Air Intake G2x/G4x Mx40i PEX (2023–2026). A semi-open, high-flow intake that sharpens response and adds satisfying induction sound.
Dinan reengineers the entire lower air box—about 60% larger—to house a custom filter with 40% more area (115 in² vs 82 in²). Patterned secondary openings on the fender side add volume without raising turbo inlet temps in testing. Built from high heat-deflection PEX for an OEM-like fit, it outflows stock by 58% with gains up to +9 WHP and +8 lb-ft on a stock car. Compatible with or without factory bracing, quick to install, and designed for a more pronounced turbo/BOV note.
Features
- 60% larger air box; 40% larger, free-flowing filter
- 58% more flow vs. stock; improved throttle response
- Secondary inlet openings tuned for controlled temps
- High heat-deflection PEX; works with/without factory bracing
Have questions or want professional installation? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area location at 562-981-6800. We offer installation and customization at both locations.
Ordering 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
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562-981-6800 (Signal Hill, CA)
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