AIRTEC Oil Breather Kit ATMSFO85 – MK2 Ford Focus ST & RS



SKU: ATMSFO85 Categories: , , , , , Tags: , , , , , , Brand: AIRTEC Motorsport


AIRTEC Oil Breather Kit ATMSFO85 – MK2 Ford Focus ST & RS

AIRTEC Motorsport complete breather kit for Focus MK2 ST & RS.

Designed to help reduce the risk of split diaphragms on the 2.5 turbo engine that suffers with oil filter and breather issues. This is common on modified cars.

Includes a full fitting kit with Pro Hoses and everything ready to fit!


Please note: Kit is designed to allow the engine to breathe better by venting fumes to atmosphere.  The engine’s original breather system limits the fumes by recirculating them back into the engine’s intake to consume.


Allowing the engine to increase its breathing capacity can bring to light previously unforeseen issues. tThis usually indicates engine wear or general ill health that had before been masked by the original breather system’s limitations.

AIRTEC have sold 100s of these kits over the years, but as these cars get older we must highlight the importance of ensuring they are in excellent health and running order. From time-to-time a customer will report experiencing a noticeable increase in fumes and or/smoke after fitting a breather kit.



  • AIRTEC Motorsport breather top plate
  • AIRTEC Motorsport oil catch can
  • New oil filter
  • New O-ring seals
  • Pro Hoses silicone hose kit
  • All fittings and fixings ready to fit
  • Complete fitting instructions



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