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K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.
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.
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.
Other popular K&N Engineering products customers consider together:
K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.
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.
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.
Other popular K&N Engineering products customers consider together: