{"product_id":"airtec-motorsport-two-piece-breather-system-ford-focus-mk2-st-rs","title":"Airtec Motorsport Two-Piece Breather System Ford Focus Mk2 ST RS","description":"\u003ch2\u003eAirtec Motorsport Two-Piece Breather System for Ford Focus  Mk2 ST \u0026amp; RS\u003c\/h2\u003e\n\u003cp\u003eTuning levels on the Mk2 Ford Focus  RS and ST push the standard Ford oil filter housing to its limit — the fragile clip-on diaphragm inside is prone to splitting or leaking. Airtec's two-piece breather kit addresses this directly.\u003c\/p\u003e\n\u003cp\u003eThe kit includes a modified and baffled Ford oil filter housing (with a new oil filter element and seals for straightforward fitting), an Airtec oil separator with a billet mounting block and laser-cut fitting washer that doubles as a drilling template for the battery tray, and custom-made Pro Hoses oil-resistant fluoro silicone hoses shaped to fit the engine bay far better than straight hoses, complete with stainless steel jubilee clips.\u003c\/p\u003e\n\u003cp\u003eUnlike the factory system, which recirculates fumes back into the intake, this kit vents them to atmosphere for genuinely improved engine breathing. Two purchase options are available: Exchange, where your old oil filter housing is required before a kit is sent; or Outright, where you receive the full kit and can optionally return your old housing for a partial refund — useful for international customers or those who want to fit first and return the old part after.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModified, baffled Ford oil filter housing with new filter element and seals\u003c\/li\u003e\n\u003cli\u003eAirtec oil separator with billet mounting block\u003c\/li\u003e\n\u003cli\u003eLaser-cut fitting washer doubles as a drilling template\u003c\/li\u003e\n\u003cli\u003eCustom-shaped Pro Hoses fluoro silicone hoses with stainless jubilee clips\u003c\/li\u003e\n\u003cli\u003eVents fumes to atmosphere rather than recirculating them\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable as Exchange (old housing required first) or Outright (full kit, optional partial refund on return of old housing)\u003c\/li\u003e\n\u003cli\u003eIncreasing the engine's breathing capacity can reveal pre-existing wear or health issues previously masked by the restrictive factory system — some owners have reported a noticeable increase in fumes or smoke after fitting, which usually points to an underlying engine condition rather than a fault with the kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFord Ford Focus  ST (MK2)\u003c\/li\u003e\n\u003cli\u003eFord Ford Focus  RS (MK2)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AIRTEC Motorsport","offers":[{"title":"Default Title","offer_id":58589083369853,"sku":"ATMSFO16","price":279.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/5767\/7352\/files\/ATMSFO16_4.jpg?v=1787737308","url":"https:\/\/www.tegiwa.com\/products\/airtec-motorsport-two-piece-breather-system-ford-focus-mk2-st-rs","provider":"Tegiwa","version":"1.0","type":"link"}