BMC ACOTASP-17 OTA Oval Trumpet Carbon Fiber Airbox Cold Air Intake Kit

The BMC ACOTASP-17 is a complete engine air aspiration and filtration kit — part of BMC's OTA (Oval Trumpet Airbox) performance intake system line. Designed as a direct replacement for the factory airbox, this kit delivers improved airflow and engine protection in a premium carbon fiber housing.

At the heart of the OTA system is an oval-shaped carbon fiber airbox housing a cylindrical air filter with a dynamic inlet. Unlike stock airboxes that operate in a depression (vacuum) regime — which restricts flow and reduces performance — the OTA system works in a pressure regime, continuously supplying the engine with a high volume of air by harnessing the dynamic pressure created by vehicle speed.

A key engineering feature is the internal "Trumpet" element positioned near the airbox outlet. This trumpet-shaped component guides and optimizes airflow toward the engine, reducing turbulence and minimizing pressure drop along the entire intake path for more efficient and consistent air delivery.

The included cylindrical filter element is constructed from multi-layer pre-oiled cotton gauze, engineered to deliver high filtration efficiency while maintaining low restriction. It captures debris, sand, dust, and other contaminants before they can reach sensitive engine components such as injectors, valves, and air flow sensors.

Key Features:

• Complete bolt-on OTA intake system — fully replaces the OEM airbox
• Oval carbon fiber airbox construction for strength and lightweight performance
• Internal Trumpet element reduces turbulence and pressure drop
• Dynamic inlet operates in pressure regime for maximum air delivery
• Multi-layer pre-oiled cotton gauze filter for high efficiency and low restriction
• Washable and reusable filter — serviceable for the life of the vehicle
• Regeneratable with a BMC cleaning and re-oiling kit

The BMC ACOTASP-17 is engineered for enthusiasts who want a direct-fit, high-performance intake upgrade that combines motorsport-derived technology with long-term serviceability.