AIRTEC Stage 3 Intercooler Upgrade for Focus RS Mk2

AIRTEC Stage 3 is the only off the shelf intercooler that uses a 100mm deep core! we use this core only in the most extreme coolers, we name the 100mm core ‘GobStopper’ due to it’s amazing cooling properties

Every Stage 3 Intercooler comes with a 70mm cold side hose, if you have a big boost pipe kit fitted, your Hot side pipework will still fit.

AIRTEC part no: ATINTFO23

Airtec Part No: ATINTFO23
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£579.17 (exc VAT)
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Technical Data


AIRTEC stage 3 is the only off the shelf intercooler that uses a 100mm deep core! we use this core only in the most extreme coolers, we name the 100mm core ‘GobStopper’ due to it’s amazing cooling properties

The AIRTEC stage 2 had already proved itself in the Focus RS tuning scene as the must have mod for 400 cars, we wanted to take the stage 3 to a whole new level and it took well over 10 month’s to get perfect.

Every Stage 3 Intercooler comes with a 70mm cold side hose, if you have a big boost pipe kit fitted, your hot side pipework will still fit.

Features of Stage 3:

Smooth flow curved end tanks, for that ultimate flow
Cold side intercooler end tank made with 70mm outlet to match the throttle body outlet
70mm alloy/silicone cold side hose, if you have a big boost pipe kit fitted, your hot side pipework will still fit
Huge high flow 100mm core AKA ‘The GobStopper’
Air-Ram Scoop, forces Air directly into core of intercooler
Fitting takes 2-3 hours max, NO Bumper removal required
Increased BHP & torque Figure
Available in Pro-Series Black or Natural Silver ( Add £49.95)
Strongest Intercooler available, backed up by our 3 year warranty.
Made by Europes No.1 Intercooler supplier for the Mk2 RS
Test results

AIRTEC Stage2 Intercooler – Max power 594.2 bhp & 546.3 lbft torque:

  • Run 1 Air temp into Intercooler 164 degrees & Air temp out of Intercooler 25 degrees
  • Run 2 Air temp into Intercooler 163 degrees & Air temp out of Intercooler 27 degrees
  • Run 3 Air temp into Intercooler 168 degrees & Air temp out of Intercooler 28 degrees

AIRTEC Stage3 Intercooler – Max power 631.5 bhp & 600.5 lbft torque:

  • Run 1 Air temp into Intercooler 166 degrees & Air temp out of Intercooler 21 degrees
  • Run 2 Air temp into Intercooler 167 degrees & Air temp out of Intercooler 22 degrees
  • Run 3 Air temp into Intercooler 171 degrees & Air temp out of Intercooler 22 degrees

Gains of 37.3 bhp peak & 54.2 lbft torque increase. This was simply by swapping from Stage 2 to Stage 3, Please note if you were fitting stage 3 on a 400 bhp car you would not see gains like above, this intercooler was designed for Genuine 500 bhp cars, it will improve a 400 bhp car but not to the level of the car on test.


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