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Auto Specialists

AS Performance 2 piece breather system for RS & ST

Tuning levels on the Focus RS & ST have pushed the standard Ford oil filter housing to its limit, with the fagile diaphragm inside these housings splitting and also leaking due to the clip on design, a upgraded breather system was required, the AS Performance 2 pce breather kit ticks all the boxes and more...

The AS Performance 2 piece breather kit includes the following

  1. 1 x Modified & Baffled Ford oil filter housing, includes new oil filter element and oil seals for no fuss fitting
  2. 1 x AS Performance oil separator with billet mounting block and laser cut fitting washer that also doubles up as a template when drilling to attach separator to battery tray
  3. 5 x Pro-Hose oil resistant fluorosilicon lined hoses, custom made to fit your engine bay, far superior fitting than straight hoses and available in various colours to match your engine bay. Complete with full stainless steel chunky jubilee clips, very minor trimming of hoses may be required. 
  4. 1 x Mini breather and alloy joiner, this attaches to bottom of AS oil separator hose which runs down back of engine and secures to the gearbox with a modified stainless 'P' clip, its positioned so any engine fumes exit underneath the floor pan


Exchange - £445.95 we require your old oil filter housing before sending 2 piece breather kit.Once you have purchased, a kit will be allocated for you, when we have received your old ford oil filter housing we can send your new 2 piece AS breather kit

Outright - £595.95 you will receive full kit & if you wish to return your old oil filter housing we will refund you £149. This is good for international customers that can't send their old unit back & customers that wish to fit first and then return after installation