{"product_id":"sprk-b58b-supertech-dual-valve-springs-supra-gr","title":"Supertech Dual Valve Spring Kit for 2020+ Supra GR","description":"Supertech dual valve spring kits for 2020+ Supra GR. Includes 24 dual springs, 24 titanium retainers. Available in two options with 75lb or 85lb seat pressure. Please do all your research and consult your engine builder if necessary!\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2020-2021 Toyota Supra GR\u003cbr\u003eMKV MK5 B58B30 Engine\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eInstall Notes:\u003c\/span\u003e\u003cbr\u003eUses OEM Seats\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003e(24) Dual Valve Springs\u003cbr\u003e(24) Titanium Retainers\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePressure Seat:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eSPRK-B58B\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e75lbs @ 37mm \/ 155lbs @ 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eSPRK-B58B-2\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e85lbs @ 37mm \/ 155lbs @ 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\nAll Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance and durability at high RPM. Using high quality steel alloy also provides the added benefit of better structural memory.\u003cbr\u003e\u003cbr\u003eSupertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit. \u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/supertech-products\" style=\"color: #afafaf;\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Supertech Parts\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Supertech","offers":[{"title":"75lb Seat Pressure (SPRK-B58B)","offer_id":50563023831382,"sku":"SUP-SPRK-B58B","price":827.85,"currency_code":"EUR","in_stock":true},{"title":"85lb Seat Pressure (SPRK-B58B-2)","offer_id":50563023864150,"sku":"SUP-SPRK-B58B-2","price":827.85,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/SPRK-B58B-supertech-DUAL-valve-springs-supra-gr.jpg?v=1749207896","url":"https:\/\/www.speed-addicts.com\/en\/products\/sprk-b58b-supertech-dual-valve-springs-supra-gr","provider":"Speed Addicts","version":"1.0","type":"link"}