{"product_id":"jb4-tuner-2020-2026-toyota-gr-supra-mk5","title":"JB4 Tuner - 2020-2026 Toyota GR Supra Mk5","description":"\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to +80 whp \/ +100 hp crank\u003c\/strong\u003e on a stock B58 Supra running pump gas — even more with bolt-ons, E85, or a bigger turbo\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo ECU flash — fully compatible with locked 🔒 ECUs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo versions\u003c\/strong\u003e — the standard \u003cstrong\u003eJB4\u003c\/strong\u003e (includes the JB4 PRO Bluetooth adapter \u0026amp; free app) or the upgraded \u003cstrong\u003eJB4PRO board\u003c\/strong\u003e with built-in Bluetooth, flex-fuel, and fuel-pressure control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug \u0026amp; play harness\u003c\/strong\u003e — fast install\/removal, fully reversible, not VIN-locked\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull feature set\u003c\/strong\u003e — map switching, boost-by-gear, water\/meth, data logging, fault-code read\/clear, wastegate \u0026amp; exhaust flapper control\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBillet enclosure • Designed \u0026amp; assembled in the USA • 5-year warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\u003c!-- splitnew --\u003e\n\u003cstyle\u003e\n@media (max-width:680px){\n  .sf-row { display:block !important; }\n  .sf-row td { display:block !important; width:100% !important; padding:0 0 24px 0 !important; box-sizing:border-box; }\n  .sf-video-wrap { position:relative; padding-bottom:56.25%; height:0; overflow:hidden; border-radius:6px; }\n  .sf-video-wrap iframe { position:absolute; top:0; left:0; width:100%; height:100%; border:0; }\n}\n\u003c\/style\u003e\n\u003ch2 style=\"text-align: center;\"\u003eJB4 Tuner — 2020-2026 Toyota GR Supra Mk5\u003c\/h2\u003e\n\u003cp style=\"text-align: center; color: #555; margin-bottom: 32px;\"\u003eThe most advanced plug-and-play tuning system for the turbocharged \u003cstrong\u003eA90 \/ A91 GR Supra\u003c\/strong\u003e — up to \u003cstrong\u003e80 whp (100 hp crank)\u003c\/strong\u003e on a completely stock car, with no flash and no risk to your factory ECU.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 40px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/jb4-tuner-00002.jpg\" alt=\"JB4 plug-and-play tuner for 2020-2026 Toyota GR Supra Mk5\" style=\"max-width: 70%; width: 100%; border-radius: 6px; display: inline-block;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8db; border: 2px solid #ffe58f; border-radius: 8px; padding: 16px 22px; margin: 0 0 40px;\"\u003e\n\u003cp style=\"margin: 0 0 10px; color: #6b5900; line-height: 1.6; font-size: 1.05em;\"\u003e\u003cstrong\u003e✅ Which Version Should You Choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px; color: #6b5900; line-height: 1.6;\"\u003e\u003cstrong\u003eJB4\u003c\/strong\u003e ($599) — the right choice for most Supra owners. Standard JB4 board with plenty of power for a stock or bolt-on car on 93 octane. \u003cstrong\u003eIncludes the JB4 PRO Bluetooth smartphone adapter \u0026amp; free app\u003c\/strong\u003e for wireless map switching, logging, and free firmware updates.\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #6b5900; line-height: 1.6;\"\u003e\u003cstrong\u003eJB4PRO Board\u003c\/strong\u003e ($899) — the upgraded control board for serious builds. Adds \u003cstrong\u003ebuilt-in Bluetooth, integrated flex-fuel \u0026amp; fuel-pressure control, port-injection \/ WMI support, and onboard logging memory\u003c\/strong\u003e. Choose this if you're running E30\/E40+, an upgraded turbo, port injection, or water\/methanol.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ctable class=\"sf-row\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 40px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 55%; vertical-align: top; padding: 0 24px 0 0;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px;\"\u003eReal Power, No Flash Required\u003c\/h3\u003e\n\u003cp\u003eThe JB4 is the most advanced plug-and-play tuning system available for the Supra platform. Power gains of up to \u003cstrong\u003e80 horsepower to the wheels (100 hp crank)\u003c\/strong\u003e are possible on a completely stock B58 car running pump gas. Add bolt-ons, higher octane, E85 mixtures, or an upgraded turbo and the gains climb even higher.\u003c\/p\u003e\n\u003cp\u003eUnlike a flash tune, the JB4 needs no staged upgrades or supporting mods — install it as your very first upgrade and immediately feel stronger acceleration, faster turbo response, and smoother power delivery. And because it never touches your ECU, it's fully compatible with locked ECUs.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 45%; vertical-align: top; padding: 0 0 0 8px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/JB4-BOX-0000.jpg\" alt=\"JB4 billet aluminum enclosure for Toyota Supra Mk5\" style=\"width: 100%; border-radius: 6px; display: block;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"sf-row\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 40px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 45%; vertical-align: top; padding: 0 24px 0 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/JB4-PRO_WIreless-device-connection-bluetooth-included.jpg\" alt=\"JB4 PRO Bluetooth wireless adapter included with the standard Toyota Supra JB4 tuner\" style=\"width: 100%; border-radius: 6px; display: block;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55%; vertical-align: top; padding: 0 0 0 8px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px;\"\u003eWireless Tuning on the Standard JB4\u003c\/h3\u003e\n\u003cp\u003eEven the standard JB4 connects to your phone. The included \u003cstrong\u003eJB4 PRO Bluetooth adapter\u003c\/strong\u003e fits fully inside the JB4 enclosure for weather protection and a clean look, and wirelessly connects to your iOS or Android device. Record and analyze data, switch performance maps on the fly, and pull free firmware updates as BMS releases more powerful maps and new features.\u003c\/p\u003e\n\u003cp\u003eThe JB4PRO Free app adds an intuitive interface, help buttons, and advanced log-analysis tools that estimate performance and flag any tuning concerns.\u003c\/p\u003e\n\u003cp style=\"color:#555; font-size:0.9em; margin-top:12px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The included adapter is the JB4 PRO \u003cem\u003esmartphone connection\u003c\/em\u003e — it is not the same as the upgraded \u003cstrong\u003eJB4PRO control board\u003c\/strong\u003e below.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#f5f7ff; border:1px solid #d6ddff; border-radius:8px; padding:20px 24px; margin:0 0 48px;\"\u003e\n\u003ch3 style=\"text-align:center; margin:0 0 16px;\"\u003eJB4 vs. JB4PRO Board — What's the Difference?\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom:2px solid #d6ddff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eJB4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eJB4PRO Board\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003ePump-gas power \u0026amp; map switching\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e✅\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003eData logging\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e✅\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e✅ + onboard memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eIncluded adapter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eBuilt in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003eFlex-fuel integration\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eAdd-on hardware\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eBuilt in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003eFuel-pressure control\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eLimited\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eEnhanced\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #e6ebff;\"\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003ePort injection \/ WMI\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eExternal hardware\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003e\u003cstrong\u003eIntegrated\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;\"\u003eBest for\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eStock \/ bolt-on 93-oct builds\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px; text-align:center;\"\u003eE30+, big turbo, port inj \/ WMI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin:14px 0 0; color:#444; font-size:0.9em; text-align:center;\"\u003eFor a mostly stock Supra chasing a simple plug-in power bump on 93 octane, the \u003cstrong\u003estandard JB4 is plenty\u003c\/strong\u003e. Step up to the \u003cstrong\u003eJB4PRO board\u003c\/strong\u003e if you're building toward higher ethanol content or a serious fuel system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 48px;\"\u003e\n\u003ch3 style=\"text-align: center; font-size: 1.2em; margin: 0 0 16px;\"\u003eAdvanced Tuning, Built In\u003c\/h3\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/JB4-PRO-APP-FREE_1024x1024.jpg\" alt=\"JB4 PRO free tuning app for Toyota Supra Mk5\" style=\"max-width: 70%; width: 100%; border-radius: 6px; display: inline-block;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"text-align: center; margin: 0 0 8px;\"\u003eDyno Results — Stock vs. JB4\u003c\/h3\u003e\n\u003cp style=\"text-align: center; color:#777; margin: 0 0 16px; font-size:0.9em;\"\u003e2020+ Toyota GR Supra B58 — factory tuning vs. JB4. Click to enlarge.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 40px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/a90_supra_jb4_dyno.jpg\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0890\/2048\/files\/a90_supra_jb4_dyno.jpg\" alt=\"2020+ Toyota Supra Mk5 B58 JB4 dyno chart gains stock vs tuned\" style=\"max-width: 70%; width: 100%; border-radius: 6px; display: inline-block;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ctable class=\"sf-row\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 40px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: middle; padding: 0 24px 0 0;\"\u003e\n\u003cdiv class=\"sf-video-wrap\" style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 6px;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" src=\"https:\/\/www.youtube.com\/embed\/92ntIuAqzE4\" title=\"JB4 Tuner for 2020+ Toyota Supra Mk5 Install\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: middle; padding: 0 0 0 8px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px;\"\u003eEasy Plug-and-Play Install\u003c\/h3\u003e\n\u003cp\u003eThe JB4 harness plugs into accessible engine-bay connectors — fast to install, fast to remove, and completely reversible. Watch the full Supra Mk5 install, then grab the \u003ca href=\"https:\/\/www.jb4tuned.com\/instructions\/JB4_BMW_B48_B58_Install_Guide.pdf\" target=\"_blank\" rel=\"noopener\"\u003eB58 install guide (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"color:#555; font-size:0.9em;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e In-dash commands are not yet developed for the Supra JB4.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"sf-row\" style=\"width: 100%; border-collapse: collapse; margin-bottom: 40px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: middle; padding: 0 24px 0 0;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px;\"\u003eA Decade of Proven Tuning\u003c\/h3\u003e\n\u003cp\u003eThe JB4 has been the gold standard in plug-and-play turbocharged tuning for over a decade, sold in 67+ countries. Often imitated, never duplicated — with more advanced connection points, full CANbus integration, fuel \u0026amp; spark control, and Bluetooth logging no other piggyback can match.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: middle; padding: 0 0 0 8px;\"\u003e\n\u003cdiv class=\"sf-video-wrap\" style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 6px;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" src=\"https:\/\/www.youtube.com\/embed\/4qjrP9IncZE\" title=\"2020 Toyota Supra Dyno Results Stock vs JB4 Tuned\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr style=\"margin: 40px 0; border: none; border-top: 1px solid #e0e0e0;\"\u003e\n\u003ch2 style=\"text-align: center; margin-bottom: 24px;\"\u003eFAQ\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 24px 20px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Supra does this fit?\u003c\/strong\u003e\u003cbr\u003e2020-2026 Toyota GR Supra Mk5 (A90 \/ A91) with the turbocharged B58 inline-six.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 0 20px 8px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to flash my ECU?\u003c\/strong\u003e\u003cbr\u003eNo. The JB4 requires no ECU flash and is fully compatible with locked ECUs — real gains without unlocking or flagging your ECU.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 24px 20px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between JB4 and JB4PRO?\u003c\/strong\u003e\u003cbr\u003eThe standard \u003cstrong\u003eJB4\u003c\/strong\u003e includes the JB4 PRO Bluetooth smartphone adapter and is plenty for a stock or bolt-on 93-octane Supra. The \u003cstrong\u003eJB4PRO board\u003c\/strong\u003e is an upgraded control board with built-in Bluetooth, integrated flex-fuel \u0026amp; fuel-pressure control, port-injection \/ WMI support, and onboard logging — the better choice for E30+, big-turbo, or serious fuel-system builds.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 0 20px 8px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the standard JB4 have Bluetooth?\u003c\/strong\u003e\u003cbr\u003eYes — it includes the JB4 PRO Bluetooth adapter and free app for wireless map switching, logging, and firmware updates. The JB4PRO board simply builds Bluetooth into the hardware along with the added fuel-system features.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 24px 20px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhat octane do I need?\u003c\/strong\u003e\u003cbr\u003ePump gas works for the base gains. Higher octane, E85 blends, and race fuel unlock the more aggressive maps.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 0 20px 8px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eIs it reversible?\u003c\/strong\u003e\u003cbr\u003eCompletely. The JB4 is not VIN-locked — remove it any time, swap it between vehicles, or resell it later.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 24px 20px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the warranty?\u003c\/strong\u003e\u003cbr\u003e5 years from Burger Motorsports. Designed and assembled in the USA.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 50%; vertical-align: top; padding: 0 0 20px 8px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich should I buy?\u003c\/strong\u003e\u003cbr\u003eFor most stock or lightly-modded Supras on 93 octane, the standard JB4 is all you need. Go JB4PRO board if you're planning E30+, an upgraded turbo, port injection, or water\/methanol.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Burger Motorsports","offers":[{"title":"JB4 (Standard – Bluetooth Included)","offer_id":55089553146175,"sku":"A90-SUPRA-JB4-PRO-BT-ADAPTER","price":451.0,"currency_code":"GBP","in_stock":true},{"title":"JB4PRO Board (Flex-Fuel \/ Big Turbo)","offer_id":55089555669311,"sku":"A90-SUPRA-JB4PRO","price":677.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/jb4-tuner-00002_fed0ddb3-ffdf-4eb5-bcca-b4fb2a4b14d5.jpg?v=1786406546","url":"https:\/\/www.stickerfab.com\/en-gb\/products\/jb4-tuner-2020-2026-toyota-gr-supra-mk5","provider":"StickerFab","version":"1.0","type":"link"}