BMC ACOTASP-24 Oval Trumpet Airbox Carbon Fiber Cold Air Intake System

The BMC ACOTASP-24 Oval Trumpet Airbox is a complete high-performance engine air aspiration and filtration system that completely replaces the factory airbox. This premium intake system features an oval-shaped carbon fiber airbox housing a cylindrical air filter with a dynamic inlet, engineered to maximize airflow and engine performance.

Advanced Trumpet Technology:

The OTA (Oval Trumpet Airbox) system features BMC's innovative "Trumpet" design—a specially shaped element positioned inside the airbox near the outlet that optimizes airflow conveyance to the engine while reducing turbulence. Unlike stock airboxes that operate in a depression regime with restricted airflow, the OTA system works in a pressure regime, providing constant, high-volume air delivery by taking advantage of dynamic air pressure created by vehicle speed.

Key Features:

• Lightweight carbon fiber construction for durability and heat resistance
• Multi-layer pre-oiled cotton filter element for superior filtration efficiency
• Filters particles as small as 7 microns while maintaining optimal airflow
• Washable and reusable filter—lifetime serviceability with proper maintenance
• Oval shape provides exceptional installation versatility in tight engine bays
• Dynamic inlet design reduces pressure drop along the aspiration line
• Optimized internal fluid dynamics for maximum air delivery
• Complete bolt-in replacement for factory air filtration system

Quality and Performance:

BMC air filters are manufactured to ISO 5011 international filtration standards and feature EN 9100:2018 and ISO 9001:2015 certifications. The pre-oiled cotton gauze filtering material offers superior air permeability compared to restrictive paper filters, allowing increased airflow while providing excellent engine protection against debris, dust, and contaminants. The low-viscosity oil treatment suspends particles away from filter fibers, maintaining consistent performance between cleanings.

Trusted by professional racing teams in Formula 1, Le Mans, MotoGP, and World Superbike competition, BMC air filtration systems deliver proven performance gains for both street and track applications.