{"product_id":"supertech-black-nitride-intake-valves-plus-1mm-subaru-ej25-sohc","title":"Supertech Black Nitride Intake Valves +1mm - Subaru EJ25 SOHC - Forester \/ Impreza \/ Liberty \/ Outback","description":"\u003ch2\u003eSupertech Black Nitride Intake Valves +1mm - Subaru EJ25 SOHC - Forester \/ Impreza \/ Liberty \/ Outback\u003c\/h2\u003e\n\u003cp\u003eSupertech black nitride intake valves for the non-turbo EJ25 SOHC engines (EJ251, EJ252 and EJ253) in the Subaru Forester, Impreza RS, Liberty and Outback 2.5. They are made from 21-4N stainless steel, and the black nitride surface treatment hardens the stem and lowers friction in the guide, which helps the valve and guide last on a hard-working engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptions:\u003c\/strong\u003e set of 8 (SIVN-1025-8) or single (SIVN-1025). Most builds need the set; the single valve is for replacing one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For the non-turbo EJ25 SOHC (EJ251 \/ EJ252 \/ EJ253) only. Installation by a professional engine builder is recommended.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStainless Steel 21-4N intake valve\u003c\/li\u003e\n\u003cli\u003eHead diameter 37 mm (+1 mm)\u003c\/li\u003e\n\u003cli\u003eStem diameter 5.96 mm\u003c\/li\u003e\n\u003cli\u003eOverall length 120.60 mm\u003c\/li\u003e\n\u003cli\u003eSingle-groove keeper\u003c\/li\u003e\n\u003cli\u003eBlack nitride surface treatment for a harder, lower-friction stem\u003c\/li\u003e\n\u003cli\u003eSold as a set of 8 (every intake valve in the engine) or as a single valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePairs Well With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/supertech-valve-stem-seals-intake-subaru-ej20-ej25\"\u003eSupertech Polyacrylic Intake Valve Stem Seals - Subaru EJ20 Turbo \/ EJ25 - WRX \/ WRX STI \/ Forester \/ Liberty\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/supertech-valve-keeper-subaru-ej20-ej25\"\u003eSupertech Valve Locks 6mm 6 Degree - Subaru EJ20 Turbo \/ EJ25 - WRX \/ WRX STI \/ Forester \/ Liberty\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/gsc-power-division-intake-exhaust-valve-guides-subaru-ej-sohc\"\u003eGSC Power-Division Manganese Bronze Intake\/Exhaust Valve Guide - Subaru EJ20\/EJ25 SOHC\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"chicane-links\"\u003eShop more: \u003ca href=\"\/collections\/supertech\"\u003eSupertech\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNeed help choosing parts? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Set of 8","offer_id":54305577402661,"sku":"SIVN-1025-8","price":425.0,"currency_code":"AUD","in_stock":true},{"title":"Single","offer_id":54305577435429,"sku":"SIVN-1025","price":55.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/stainless-intake-1g-8_0ece3136-1b73-4158-9b86-48a7304ff54e.jpg?v=1793313885","url":"https:\/\/www.chicaneaustralia.com.au\/products\/supertech-black-nitride-intake-valves-plus-1mm-subaru-ej25-sohc","provider":"Chicane Australia","version":"1.0","type":"link"}