WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.Unlock the hidden power in your B58-powered BMW with the Dinan Closed Carbon Fiber Cold Air Intake System (D760-0046) a meticulously engineered upgrade that transforms your factory setup with genuine performance and refined aesthetics. Designed for the BMW M240i, 340i, and 440i, this intake system enhances airflow, throttle response, and efficiency, all while maintaining a sealed design to protect against heat soak and preserve consistent performance.
Built from 100% high-grade carbon fiber, this closed intake system delivers +15 horsepower and +13 lb-ft of torque at 6000 RPM on stock vehicles impressive gains in a modern turbocharged engine. With a 30% larger airbox, a 34% increase in filter surface area, and an optimized carbon intake tube, the D760-0046 eliminates restrictive factory elements like intake baffles and Helmholtz chambers, allowing smooth, uninterrupted airflow.
While the fully sealed system delivers minimal induction noise, it retains a sportier tone under load, and for those who prefer added sound, Dinan offers a retrofit vented lid (Part #: D763-0213-G-A) for an easy upgrade without replacing the full intake.
Key Features:
- Proven power gains: +15 HP / +13 lb-ft @ 6000 RPM (+13 WHP / +11 WTQ)
- Fully sealed design for maximum heat insulation and consistent performance
- 30% larger airbox and 34% larger filter area than stock
- Optimized carbon fiber intake tube removes baffles and turbulence
- Injection-molded Air Mass Meter housing (8% larger than OEM)
- 100% premium carbon fiber construction improved strength, finish, and longevity
- CARB EO D-176-56: 50-State Emissions Legal for 2019–2021 F2x/F3x models
- Straightforward installation using factory mounting points
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