The Airtec Motorsport RS-Style Crossover Intake Pipe for the Ford Focus ST225 Mk2 was developed based on feedback from Focus ST drivers who were looking for more efficient airflow, a more aggressive intake sound, and a sleeker engine bay appearance.
Unlike the original ST intake system, which loops around the engine via multiple bends and even includes a restrictive 90-degree bend, this RS-style crossover pipe runs directly over the engine to the turbo. This creates a shorter and more efficient airflow with less drag.
Where the original piping varies from 80 mm to 70 mm and contains multiple constrictions, the Airtec crossover pipe maintains a constant diameter of 76 mm over the full length. This improves airflow towards the turbo, resulting in better response and a sportier intake sound.
Moreover, the crossover pipe enables the mounting of the enormous Airtec Group A air filter for the Focus RS, the largest air filter in the Airtec range for the Focus platform. The original MAF sensor is retained, meaning no adjustments to the ECU calibration are required.
Manufactured from high-quality aluminium and available in a brushed silver finish or a black powder coating. The kit comes complete with a Pro Hoses silicone hose, mounting materials, and a comprehensive installation manual.
Optionally available: A modified vacuum hose specifically developed for the altered routing of the intake system. Airtec recommends this option for correct installation.
Optionally available: An Airtec Motorsport ECU holder/cover made of high-quality plastic. This replaces the original ECU mount and ensures a neat OEM+ finish of the engine bay.
Advantages
• Constant 76 mm diameter over the entire length
• Removes the restrictive 90-degree bend
• Improved airflow to the turbo
• Faster throttle response
• Sportier intake sound
• RS-style appearance in the engine bay
• Suitable for the large Airtec Group A filter
• Retention of the original MAF sensor
• No ECU modifications needed
• High-quality aluminum construction
Compatibility
• Ford Focus ST225 Mk2 2.5 Turbo Pre-Facelift
• Ford Focus ST225 Mk2 2.5 Turbo Facelift
Frequently Asked Questions
What is the advantage of a crossover pipe compared to the original system?
The crossover pipe offers a shorter and less restrictive route to the turbo, resulting in better airflow, more responsiveness, and a sportier sound.
Does the ECU need to be recalibrated?
No, the original MAF sensor is retained, so modification of the ECU software is not necessary.
Can I use the Airtec Group A air filter with this crossover pipe?
Yes, this pipe is specifically designed to be used with the large Airtec Focus RS Group A air filter.
Is the optional vacuum hose necessary?
The crossover pipe can be installed without it, but Airtec strongly recommends the modified vacuum hose for the best fit and correct routing.
