Air Induction Kit | HI-FLO • N14 R55/R56/R57/R58

The NM Engineering Hi-Flow Intake is a complete "Open-Air-Box" performance system designed specifically for the turbocharged N14 MINI Cooper S. Unlike many competing kits, the NM intake features an integrated, larger-diameter turbo inlet tube to maximize volume from the start. By ditching the restrictive factory-sealed box and flat filter, this system provides an unrestricted 360° air source. Extensive R&D logging confirmed that while ambient temperatures equalize above 20 mph, the open-box design consistently generates a significantly higher Mass Air Flow (MAF) volume (gr/sec) compared to the stock setup, making it the clear choice for maximum power and throttle response.

Features

• High-Volume Induction: Replaces the tube-fed OEM box with a 360° open-air source for an abundant, unrestricted supply of air to the turbo.
• Integrated Inlet Tube: Includes a larger-diameter turbo inlet pipe for smoother, high-velocity airflow.
• Premium Material Options: Choose between CNC mandrel-bent aluminum with a durable textured powder coat or a lightweight, 100% vacuum-bagged carbon fiber tube for a show-quality finish.
• Precision Hardware: Features custom-engineered stainless steel brackets, silicone couplings, and billet fittings for a perfect factory-style fit.
• Flexible Filtration: Available with either a traditional washable oiled cotton gauze filter or a "Dry" disposable paper element (for those who prefer a no-maintenance, "toss-and-replace" option).
• Emissions Legal: C.A.R.B. Exempt (Executive Order D-236-25), ensuring 50-state legality.

Notes

• Specific Fitment: Designed for the N14 Engine equipped with a Mass Air Flow (MAF) sensor. (For vehicles without a MAF sensor, please refer to part number NM.658856.1).
• Filter Selection: To order the dry/disposable paper filter kit, ensure the part number ends with (D).
• Finish Availability: Available in Textured Blue or Black Powder Coat
• Origin: Designed, engineered, and manufactured to high-performance standards in CA, USA.