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AIRTEC Focus MK2 ST Stage 3 300bhp to 425bhp RS Spec Intercooler with ST size scoop & Big Bore silicone hose joiners

£499.00 (Including 20% VAT)

Airtech have taken their huge Focus RS Intercooler and modified it to fit with the ST Bumper. They have then taken their massive 2.5″ cold side Pro Hose (intercooler to inlet manifold) and a Pro Hose boost pipe from Intercooler to ST standard metal pipe, making this kit the best value for money option for 300+ bhp Focus ST’s. If running Big Turbo conversion this Intercooler will go up to 500bhp.
Fitting on Pre-face lift models 2005 to 2008 – We would recommend fitting the RS radiator due to clearance on the cold side hose (intercooler to throttle body), if you don’t have enough money to buy an RS radiator then you will still get the same gains but the hose will be a very tight fit.
SKU: ATINTFO34 Category: Tag: Product Brand:


Designed & Proven to extract maximum gains from your 300+ bhp ST, this kit would compliment a Big Turbo conversion. Airtecs RS into ST Performance & Cooling kit has been rolling road tested here at SA Tuning.
2.5″ Hard pipe upgrade removes Fords 2.0″ restrictive boost pipe (cold side). We saw gains of 10 bhp+ & 9 lb/ft torque increase’s over the standard Ford gains will vary depending on spec of your ST.
Intercooler spec.
  1. Air-Ram Scoop, forces air directly into core of intercooler
  2. Huge high flow 60mm core, lower ACT Temps
  3. Smooth flow end tanks, no welds, means no leaks
  4. Airtec logo brackets
  5. Increased BHP & torque figure
  6. Pro-Series Black
  7. Strongest Intercooler available, backed up by our 3 year warranty
  8. Cold & Hot side Pro Hose joiners, available in choice of colours.

Fitting takes 1 – 2 hours depending on mechanical skill & tools available.

Important Note. The Pre-facelift ST has a different radiator compared to the facelift & RS, this makes the left hand pipe (Inlet side) very tight against the radiator cradle & boost hose, we recommend removing the radiator cradle bolt, levering the cradle to the right and re-drilling a new hole & then replace bolt. Its very simple and easy to do, but is necessary to give you extra clearance for the bigger 2.5″ pipe. If you are still not happy with fit we would recommend fitting a RS radiator, not required to get the power you want, just makes cold side hose fit nicer.
Need even more Power? Take a look at Airtec’s stage 4 intercooler cooling package, this kit includes full 2.5″ boost pipe kit.
AIRTEC part number: ATINTFO34

Additional information

Silicon hose colour

Gloss Black, Frozen White, Performance Blue, Race Red, Bright Yellow, Gray, Kawasaki Green, Orange, Vivid Pink, Purple, Ultimate Green

Intake pipe

Without Symposer take off, With Symposer take off

Intercooler Finish

Pro Series Black, Natural Silver