AIRTEC Performance inlet manifold to suit Focus RS & Focus XR5 .

By Auto Specialists and good for an extra 5-10HP and 20-40 lb.ft. torque. Powder coated black.

Other colours to order.


Heat treated for 36 hours & then Pressure tested to 56 psi approximately 4 bar of pressure to ensure maximum strength.


Technical Data


We have taken more time than most perfecting our manifold to what you see here, we tested several designs which include a square to tapered manifold which unfortunately didn?t work and then our Gen2 design finally got the go ahead after month?s of testing.

After completion we found there was more gains to be made and instead of selling a manifold for the sake of getting sales we held off the release while our development technicians matched the Inlet manifold ports to the lower manifold ports ?wow? we felt the difference Immediately.

The Jig you see pictured is one of 2 Jigs that carry out this process, if you don?t buy our manifold please check that the manifold you are going to buy has had this done! it will make the world of difference.


  • Increase in BHP & Torque, expect to see gains from 5 ? 10 bhp peak & 20 to 40 lbft torque ?We saw up to 25bhp mid range gains on our 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, by far the best looking manifold available.
  • CNC Inlet ports to match lower section of the Intake manifold ?Injector side? only 1 other cast manifold offers this critical design feature
  • Value for money, the AutoSpecialists pledge.

?You can feel the difference when fitted!? this is what our customers are telling us time and time again.

We are pleased to announce we supply a 12.5mm metal push fitting with every AIRTEC inlet manifold.


AIRTEC RS Mk2 & XR5 Motorsport Plenum - ASATMSFO5