Ramair PRORAM Performance Induction Kit – Ford Focus ST 225 (MK2) with ECU Holder – Black
If you’re looking to get more from your Ford Focus ST 225, replacing the factory airbox is one of the most straightforward and rewarding upgrades you can make. This Ramair PRORAM induction kit is designed specifically for the MK2 Focus ST 225 and replaces the restrictive standard air intake with a free-flowing system that helps your turbocharged engine breathe more easily.
Better airflow into the turbo means improved throttle response, a modest gain in power and torque, and a more engaging induction sound under acceleration – that characteristic intake roar that ST owners tend to enjoy. These are real, noticeable improvements, though results will naturally vary depending on your car’s condition and any other modifications fitted.
How It Works
At the heart of this kit is Ramair’s PRORAM pleated filter, which uses nanofibre filtration media. Nanofibre filters are designed to trap fine particles while allowing more air to pass through compared to a standard paper filter element. The filter sits within a twin-tangential velocity stack – essentially a specially shaped inlet that smooths and accelerates airflow into the filter, reducing turbulence before air reaches the turbo.
The kit also includes a black heat shield to help keep hot underbonnet air away from the filter, which helps maintain cooler, denser intake air for consistent performance.
The ECU Holder – A Practical Detail Worth Noting
One of the practical challenges when fitting an induction kit to the Focus ST 225 is relocating the ECU (the engine control unit – the car’s main management computer), which sits in the standard airbox area. This kit includes a laser-cut aluminium ECU bracket, designed in-house by Ramair, that mounts to your car’s existing fixing points. This means the ECU is securely held in place without needing to modify your car or fabricate a custom bracket yourself.
What’s Included
- PRORAM pleated nanofibre performance filter
- Black heat shield
- Black silicone 4-ply inlet pipe
- Laser-cut aluminium ECU bracket
- Full fitting hardware and step-by-step instructions
Everything needed to complete the installation is included in the kit, making this a clean, self-contained upgrade with no need for additional parts.
Important – Fitment: This kit is designed specifically for the Ford Focus ST 225 (MK2). Please use the vehicle lookup tool on this page or check the Vehicle Fitment tab to confirm compatibility with your exact model before purchasing.
Additional Information
| Weight | 3.8 kg |
|---|---|
| Dimensions | 41.5 × 53.5 × 27.5 cm |
| Brand |

