Maximize Your Ford Focus II ST's Performance with K&N Intake Kit

Elevate the performance of your Ford Focus II ST 2.5L with the K&N 57I-2503 Performance Intake Kit. This specially designed system replaces your restrictive factory air intake, enabling your engine to breathe more freely and unlock significant power gains.

Discover the Benefits of the K&N 57I-2503:

• Enhanced Airflow: The kit features an aerodynamically engineered tube and a high-flow K&N air filter, drastically reducing restriction and smoothing airflow into the engine.
• Increased Horsepower & Torque: By allowing more air into the combustion chamber, this intake system delivers noticeable improvements in horsepower and acceleration across the RPM range.
• Reduced Intake Noise: The use of non-metallic, rotationally molded tubes helps to minimize unwanted intake sound, providing a more refined driving experience.
• Optimized Engine Efficiency: A less restricted air intake leads to better fuel combustion and overall engine efficiency.
• Durable Design: Built to K&N's high standards for longevity and performance.

Performance Upgrade for Your Focus ST:

The factory air intake system is often a limiting factor in engine performance. The K&N 57I-2503 kit bypasses this restriction by replacing the entire air path, ensuring that your 2.5L turbocharged engine receives the maximum amount of cool, dense air possible. This translates directly into more power and a more responsive throttle.

Give your Ford Focus II ST the performance upgrade it deserves with the K&N 57I-2503 Performance Intake Kit, available at GGCRACING.