Ford Focus St225 Airtec CAIS Intake Kit

Ford Focus ST225 Airtec CAIS Intake Kit

Upgrade the induction system of your Ford Focus ST225 with the Airtec CAIS Intake Kit, available at Auto Core Hub—your trusted source for premium performance upgrades and OEM+ components.

Designed to maximize airflow and improve engine efficiency, the Airtec CAIS (Cold Air Induction System) replaces the restrictive factory airbox with a high-performance setup engineered for the turbocharged 2.5L ST225 engine. Featuring a sealed cold air design, the system draws cooler air directly from the front intake, helping reduce heat soak and maintain lower intake temperatures for more consistent performance.

The kit includes a high-flow cotton air filter, premium silicone connectors, and precision-engineered pipework that improves airflow while enhancing turbo response and throttle feel. Drivers can also expect a deeper, more aggressive induction sound that perfectly complements the character of the ST225. Airtec testing has shown potential gains of up to 10–18bhp depending on vehicle specification and tuning setup.

Constructed from high-quality materials and developed for both road and performance use, the CAIS kit is designed for durability and long-term reliability. The package also includes ECU relocation brackets and all required fittings for a complete installation solution.

Key Features:

• High-flow cold air induction system for Focus ST225
• Improved airflow and throttle response
• Reduced heat soak with sealed airbox design
• Enhanced induction and turbo sound
• Includes performance filter, hoses, and fittings
• Suitable for standard and modified vehicles

At Auto Core Hub, we deliver upgrades that combine performance and quality. The Ford Focus ST225 Airtec CAIS Intake Kit offers the perfect balance of power, sound, and engine efficiency, making it an essential upgrade for any ST225 enthusiast.