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The Revo Open Cone Air Intake System for the Focus ST MK4 2.3 EcoBoost improves performance and offers an aggressive intake sound. Ensuring your engine can get access to enough air is paramount when increasing power; more air means more power throughout the rev range.
Only Revo Air Intake Systems are specifically designed to work in harmony with your vehicle and Revo ECU Software. Engineered to directly replace the stock airbox, pipework and filter, this kit comes complete with a turbo inlet silicone hose, aluminium pipe, silicone Intake hose, heat shield, filter and fitting kit.
When you begin to enhance performance, the restrictive OEM intake struggles to flow enough air, robbing the engine of power. The Revo Air Intake System removes these restrictive elements promoting smoother airflow. Open Cone systems replace the OEM airbox to make space for the heat shield, filter and pipework which joins directly to the turbo. Revo Flush Fit silicone hoses avoid unwanted turbulence at joins and increase the rate at which air can flow ensuring maximum performance at any level of tuning.
No detail has been overlooked when reducing restrictions within the stock airflow system. The stock corrugated plastic hose is replaced with a smooth silicone one, reducing air turbulence and increasing air volume and speed. A four-ply construction with an internal wire helix increases strength to prevent collapsing under pressure. Internal steps flush fit against the hard pipe section and turbo inlet, creating a smooth transition between components and ensuring the smoothest airflow.
The integrated sound suppression chamber of the OEM pipe has been removed, allowing for significantly more laminar airflow. The Revo inlet hose geometry allows faster air delivery to the turbo by smoothing the harsh 90° transition part of the stock pipe. Also removing the internal steps between components further ensures uninterrupted airflow and removes any unnecessary turbulence.
The Revo mid-section hard pipe offers a smoother internal geometry over the stock part it replaces, all contributing to the increased performance benefits of the Revo Intake. The pipe has been designed to match the same mounting and vacuum take-off points, ensuring a direct fitment product.
An intake system is only as good as the filter. This kit comes complete with a custom Revo Foam Filter, supported by galvanised epoxy-coated mesh for strength under load. Revo three-stage foam filters work very differently from conventional paper or cotton-gauze alternatives designed to trap particles on the outer layer. Revo filters trap debris and particles within the foam layers, allowing air to still navigate through. The spun base of the filter offers a smooth radius aluminium bell mouth, specifically designed for optimum airflow from the filter to pipe-work.
Ensuring the engine has access to cold air is vital for performance. The Revo Heat Shield channels cold air from the front intake duct while partitioning the filter from the heat of the engine bay. The Revo Heat Shield uses precise machined pins to locate to the stock mounting points to provide an easy and secure installation.
All Revo products are designed in-house and are rigorously tested utilising an in-house 3D printer, the latest CAD and CFD programs, hub dyno and Revo data acquisition software. The Revo Intake allows the turbo to run more efficiently, intake a larger volume of air and minimise turbulence to increase both power and torque, as highlighted during controlled dyno testing.
The Revo Focus ST MK4 Open Cone Air Intake System was tested in-house to compare the performance against that of the Ford OEM Intake. First tested on a vehicle running the OEM intake with Revo Software, the Revo Intake was then installed and tested in the same controlled environment to highlight the benefits of increasing airflow flow and speed.
The results show improvement throughout the whole rev range, with huge performance increases. Showing just how restrictive the stock system is when looking to upgrade the performance of your ST. The Revo Intake offers an average gain of +26WHP, and +43NM torque over the stock part. Increased airflow also delivers impressive peak performance gains of +54WHP @5100rpm and +75NM @5100RPM over the stock intake system.
