AIRTEC Motorsport Stage 4 Intercooler Upgrade for Focus ST
The AIRTEC Motorsport Stage 4 intercooler upgrade is designed for track or fast road use in the Focus ST. This high-flow intercooler features a 60mm core, air ram scoop, and 2.5″ pipework, making it ideal for cars running over 400bhp.
To ensure optimal performance during extended periods of hard driving, we have modified our popular Stage 1 Focus RS intercooler to fit within the ST bumper. We have also modified our 2.5″ big boost pipe kit to fit the Focus ST turbo.
The intercooler’s size and performance have been increased by using a 60mm core that is twice as high and almost 100mm longer than the standard item. This results in a massive increase in overall capacity and a 127% increase in frontal area over the standard intercooler, allowing it to make the most of the air flow provided.
Our high-flow end tanks and air diverter scoop ensure that flow is directed correctly and efficiently, offering much greater efficiency and volume over the standard intercooler.
The included 2.5″ hard boost pipe upgrade replaces the OEM 2″ pipework, reducing restriction and improving flow. Back-to-back dyno testing has shown a significant increase in power, with a gain of 11.8bhp and 9lb ft of torque simply by fitting the new pipework.
Features:
– Huge high flow 60mm core
– 127% increase in frontal area for improved air flow
– Air Ram Scoop forces air directly into core of intercooler
– Smooth-flow end tanks
– AIRTEC logo brackets
– 2.5″ pipe work improves flow
– Increased BHP & torque
– Pro-Series Black or Natural Silver
– Strongest intercooler available, backed up by our 3-year warranty
Please note: Pipework is only available in Pro-Series Black.
Important Note: The Pre-facelift ST has a different radiator compared to the facelift & RS. This may cause the left-hand cold side silicone hose to be tight against the radiator cradle. We recommend a simple modification to provide extra clearance for the bigger 2.5″ cold side hose. If needed, fitting an RS radiator is also recommended.
Registered Design Right number: 6022644
AIRTEC part no: ATINTFO48




