{"product_id":"supertech-gr-supra-b58-beehive-valve-spring-kit","title":"Supertech GR Supra B58 Beehive Valve Spring Kit","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003eUpgrade your \u003cstrong\u003eToyota GR Supra A90\/A91\u003c\/strong\u003e’s \u003cstrong\u003eB58 3.0L turbo‑charged inline‑6\u003c\/strong\u003e with \u003cstrong\u003eSupertech Beehive Valve Springs\u003c\/strong\u003e — available in two performance levels. Both kits are precision-engineered to improve valvetrain stability, reduce valve float, and support higher RPM operation, making them perfect for performance, track, or tuned builds.\u003c\/p\u003e\n\u003cp style=\"margin:1em 0\"\u003eThe stock B58 valve springs are excellent for factory performance, but spirited driving, high RPM operation, or tuning can push them beyond their limits. Supertech Beehive Valve Springs improve harmonic control, reduce valve float, and help maintain precise valve timing for \u003cstrong\u003eenhanced throttle response, power delivery, and engine reliability\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eKit Options\u003c\/h4\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003e1. Supertech SPRK‑MCB58\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eSeat Pressure:\u003c\/strong\u003e ~75 lbs @ 37 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eOpen Pressure:\u003c\/strong\u003e ~155 lbs @ 10 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e ~8 lbs\/mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eIdeal for \u003cstrong\u003emild to moderate performance upgrades\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eProvides improved valvetrain control over stock while remaining suitable for daily driving and lightly tuned engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003e2. Supertech SPRK‑MCB58‑2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eSeat Pressure:\u003c\/strong\u003e ~84 lbs @ 37 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eOpen Pressure:\u003c\/strong\u003e ~157 lbs @ 10 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e ~7.25 lbs\/mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eRecommended for \u003cstrong\u003eaggressive builds, high RPM operation, and track use\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eStronger spring pressures provide tighter valve control, making it ideal for higher boost, performance cams, or heavily tuned GR Supras\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eShared Features\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eValve Spring Type:\u003c\/strong\u003e Beehive (conical) for reduced mass and improved stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eMax Lift:\u003c\/strong\u003e ~12.2 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eCoil Bind Height:\u003c\/strong\u003e ~23.3 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength chrome silicon vanadium steel for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin:1em 0\"\u003eCompatible with performance retainers and keepers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cul style=\"margin:1em 0\"\u003e\n\u003cli\u003e2020+ GR Supra w\/B58 3.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul style=\"margin:1em 0\"\u003e\u003cli\u003e2020+ GR Supra w\/B58 3.0L\u003c\/li\u003e\u003c\/ul\u003e","brand":"SUPERTECH","offers":[{"title":"Standard (SPRK‑MCB58)","offer_id":62739090505868,"sku":"sptSPRK-MCB58","price":972.87,"currency_code":"USD","in_stock":true},{"title":"Upgraded (SPRK‑MCB58‑2)","offer_id":62739090538636,"sku":"sptSPRK-MCB58-2","price":1059.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0789\/3300\/0332\/files\/SupertechGRSupraB58BeehiveValveSpringKit1.png?v=1791950601","url":"https:\/\/vpmotorworks.com\/products\/supertech-gr-supra-b58-beehive-valve-spring-kit","provider":"VP Motorworks","version":"1.0","type":"link"}