{"product_id":"supertech-sodium-filled-inconel-exhaust-valves-plus-1mm-subaru-ej20-ej25-turbo","title":"Supertech Sodium Filled Inconel Exhaust Valves +1mm - Subaru EJ20 \/ EJ25 Turbo - WRX \/ WRX STI","description":"\u003ch2\u003eSupertech Sodium Filled Inconel Exhaust Valves +1mm - Subaru EJ20 \/ EJ25 Turbo - WRX \/ WRX STI\u003c\/h2\u003e\n\u003cp\u003eSupertech sodium-filled Inconel exhaust valves for the turbocharged EJ20 and EJ25 DOHC engines in the Subaru WRX and WRX STI, Forester GT \/ XT and Liberty GT. The hollow stem is part-filled with sodium, which melts at running temperature and carries heat from the valve head up into the stem and guide, so the head runs cooler under sustained boost and high rpm. The head is +1.0mm oversize (33.00 mm), for heads with oversize or recut valve seats.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptions:\u003c\/strong\u003e set of 8 (SEVI-1014-HS-8) or single (SEVI-1014-HS). Most builds need the set; the single valve is for replacing one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Oversize valves need the valve seats machined to suit. Not for the 2015-on WRX (VA), which has the FA20 engine. Installation by a professional engine builder is recommended.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInconel-Nimonic exhaust valve, sodium filled\u003c\/li\u003e\n\u003cli\u003eHead diameter 33.00 mm (+1.0)\u003c\/li\u003e\n\u003cli\u003eStem diameter 5.95 mm\u003c\/li\u003e\n\u003cli\u003eOverall length 104.7 mm (standard)\u003c\/li\u003e\n\u003cli\u003eSingle-groove keeper\u003c\/li\u003e\n\u003cli\u003eSold as a set of 8 (every exhaust 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-guides-exhaust-subaru-ej20-ej25\"\u003eSupertech Manganese Bronze Exhaust Valve Guides - Subaru EJ20 \/ EJ25 Turbo - WRX \/ WRX STI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/supertech-valve-stem-seals-exhaust-subaru-ej20-ej25\"\u003eSupertech Viton Exhaust 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-dual-valve-spring-retainer-kit-subaru-wrx-sti-fxt-lgt-ej20-ej25\"\u003eSupertech Dual Valve Spring Kit 82 lb - Subaru EJ20 \/ EJ25 Turbo - WRX \/ WRX STI\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/arp-head-stud-kit-subaru-ej20-ej25-dohc-wrx-sti-gc-gd-ge-gh-gr-gv-va-forester-sf-sg-sh-liberty-gt-be-bh-bl-bp\"\u003eARP 2000 Head Stud Kit - Subaru EJ20 \/ EJ25 DOHC - WRX \/ STI (GC \/ GD \/ GE \/ GH \/ GR \/ GV \/ VA) \/ Forester (SF \/ SG \/ SH) \/ Liberty GT (BE \/ BH \/ BL \/ BP)\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":54305556332837,"sku":"SEVI-1014-HS-8","price":1010.0,"currency_code":"AUD","in_stock":true},{"title":"Single","offer_id":54305556365605,"sku":"SEVI-1014-HS","price":125.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/inconel-exhaust-1g-8_fe09a2fe-559b-4711-985c-9d9436ca9ec1.jpg?v=1793313787","url":"https:\/\/www.chicaneaustralia.com.au\/products\/supertech-sodium-filled-inconel-exhaust-valves-plus-1mm-subaru-ej20-ej25-turbo","provider":"Chicane Australia","version":"1.0","type":"link"}