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 & BaffledFord 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 linedhoses, custom made to fit your engine bay, farsuperior fittingthanstraighthoses 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 hosewhich runs down back of engine and secures to the gearboxwith a modified stainless’P’ clip, its positioned so any engine fumes exit underneath the floor pan

Exchange–445.95we 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–595.95you 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