AIRTEC Inlet Plenum ATMSFO6 – MK2 Ford Focus RS & ST225




AIRTEC Inlet Plenum ATMSFO6 – MK2 Ford Focus RS & ST225

AIRTEC have taken more time than most perfecting their manifold to what you see here. They tested several designs, which include a square to tapered manifold that unfortunately didn’t work, and then their Gen2 design finally got the go ahead after months of testing. After completion, they found there was more gains to be made and instead of selling a manifold for the sake of getting sales, AIRTEC held off the release while the development technicians matched the inlet manifold ports to the lower manifold ports – the difference was felt immediately.



  • Increase in BHP & Torque, expect to see gains from 5 – 10 bhp peak & 20 to 40 lb ft torque. AIRTEC saw up to 25 bhp mid-range gains on their tests.
  • Heat treated for 36 hours & then pressure tested to 56 psi to ensure maximum strength
  • Won’t crack or burst like Ford OEM plastic manifold
  • Unique & stunning design
  • CNC Inlet ports to match lower section of the intake manifold ‘Injector side’ only one other cast manifold offers this critical design feature

AIRTEC supply a 12.5mm metal push fitting with every manifold.



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Additional information

Manifold Colour

Electric Orange, Performance Blue, Ultimate Green