Airtec Motorsport Group A air filter kit for the Ford Focus ST225 Mk2 2.5 turbo – a simple yet highly effective upgrade that delivers more Intake noise, clearly audible turbo and Wastegate sounds, and improved throttle response.
Removing the original airbox entirely creates a much freer airflow towards the turbo. This allows the engine to draw in air more easily, resulting in a more direct response and a much sportier character.
As well as boosting performance, this upgrade also gives the engine bay a cleaner, sleeker look. The kit comes with a large 80 mm Group A foam cone filter and an RS-style ECU cover for a neat OEM+ finish.
Fitting is straightforward and all necessary parts are included, including silicone hoses and stainless steel hose clamps.
Suitable for both pre-facelift and facelift Focus ST225 models.
Benefits
• Increased Intake noise•
Clearly audible turbo and Wastegate sounds•
Improved throttle response•
80 mm Group A foam filter•
Removes the restrictive OEM
airbox• Tighter-looking engine bay•
Includes RS-style ECU cover•
Simple installation
Compatibility
Ford Focus ST225 Mk2 2.5 turbo pre-facelift
Ford Focus ST225 Mk2 2.5 turbo facelift
Frequently Asked Questions
What will I notice after fitting this air filter kit?
You’ll hear the turbo and Wastegate working much more clearly, whilst throttle response is also noticeably improved.
Does the original airbox need to be removed?
Yes, this kit replaces the entire original airbox for maximum airflow and a sportier sound.
Is the ECU cover included?
Yes, the kit comes with an RS-style ECU cover for a neat finish in the engine compartment.
Does this kit fit both facelift and pre-facelift models?
Yes, this Group A kit fits all Ford Focus ST225 Mk2 models.
