{"product_id":"dual-valve-spring-kit-with-retainers-1","title":"Dual Valve Spring Kit with Retainers","description":"The Supertech SPRK-M1015-EX3 Dual Valve Spring Kit is a precision-matched set for a complete valvetrain overhaul, engineered for performance enthusiasts seeking high-rpm durability.\n\nThe manufacturing process includes a gas nitriding treatment followed by shot peening, significantly improving fatigue life.\n\nKey specifications include a seat pressure of 85 @ 34.50, an open pressure of 228 @ 11.5, and a maximum lift of 13.80mm, with a coil bind at 20.70mm and a rate of 12.1.\n\nThis kit is specifically designed for the 2008-2015 Mitsubishi Lancer EVO X models. The package includes 16 springs (SPR-TS1015), 16 retainers (RET-TS55\/T1EX), and 16 seat locators (SEAT-M1015-2). Please note that due to the nature of the application, these parts are sold without any express warranty or implied warranty of merchantability or fitness for a particular purpose.","brand":"Super tech","offers":[{"title":"Default Title","offer_id":52686263419192,"sku":"SPRK-M1015-EX3","price":629.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687831026.webp?v=1784870664","url":"https:\/\/store.motormia.co\/products\/dual-valve-spring-kit-with-retainers-1","provider":"MOTORMIA","version":"1.0","type":"link"}