{"product_id":"bmw-m5-m8-x5m-x6m-f90-f91-f92-f93-f95-f96-s63tu-tune","title":"BMW M5\/M8\/X5M\/X6M F90\/F91\/F92\/F93\/F95\/F96 S63TU Tune","description":"\u003ch2\u003eRacebox S63 Custom Tuning — BMW M5, M8, X5M \u0026amp; X6M\u003c\/h2\u003e\u003cp\u003eEvery S63 Racemode tune is a \u003cstrong\u003ecustom MHD calibration\u003c\/strong\u003e built for your exact car, mods, and fuel, flashed from home with the MHD app and a WiFi adapter. On our Dynojet, a stock-turbo S63 makes around \u003cstrong\u003e680 whp \/ 680 wtq on 93 octane\u003c\/strong\u003e and \u003cstrong\u003e750 whp \/ 750 wtq on E30\u003c\/strong\u003e flex fuel. You get a \u003cstrong\u003e1–2 business day\u003c\/strong\u003e response and \u003cstrong\u003e30 days of tune revisions\u003c\/strong\u003e from your first datalog, with OEM safety limiters retained.\u003c\/p\u003e\u003ch3\u003eS63 Power (whp, Racebox Dynojet)\u003c\/h3\u003e\u003ctable style=\"display:table;width:100%;max-width:780px;border-collapse:collapse;table-layout:fixed;margin:16px 0;line-height:1.4;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"width:46%;text-align:left;padding:10px 14px 10px 0;border-bottom:2px solid #41b149;font-weight:700;\"\u003eSetup\u003c\/th\u003e\n\u003cth style=\"width:14%;text-align:left;padding:10px 14px 10px 0;border-bottom:2px solid #41b149;font-weight:700;\"\u003eFuel\u003c\/th\u003e\n\u003cth style=\"width:40%;text-align:left;padding:10px 14px 10px 0;border-bottom:2px solid #41b149;font-weight:700;\"\u003ePower (whp)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eCustom tune, stock turbos\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003e93\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003e~680\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eCustom tune, stock turbos\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eE30\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003e~750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eUpgraded turbos\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eE-fuel\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px 9px 0;border-bottom:1px solid #2e2e2e;vertical-align:top;white-space:normal;\"\u003eCustom targets — contact us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eEvery dyno chart we publish lists the ambient conditions and correction factor. Real numbers, no fluff.\u003c\/p\u003e\u003ch3\u003eWhich tune should I pick?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Stock Turbo Gasoline\u003c\/strong\u003e — 93 octane on stock turbos (~680 whp).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Stock Turbo Flex Fuel\u003c\/strong\u003e \u003cem\u003e(requires flex fuel kit)\u003c\/em\u003e — E30 blend on the stock fuel system (~750 whp). E85 \/ higher ethanol needs HPFP\/LPFP upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Upgraded Turbo\u003c\/strong\u003e — for upgraded turbochargers and supporting mods; fully custom targets, logged and revised to your build.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTuned entirely on \u003cstrong\u003eMHD\u003c\/strong\u003e. Reach out and we'll map a plan for your S63.\u003c\/p\u003e","brand":"Racebox","offers":[{"title":"F90 M5 \/ Custom Stock Turbo Gasoline","offer_id":60622939586846,"sku":"RMS63-ST93","price":850.0,"currency_code":"USD","in_stock":true},{"title":"F90 M5 \/ Custom Stock Turbo Flex Fuel (requires flex fuel kit)","offer_id":60622939619614,"sku":"RMS63-STE50","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"F90 M5 \/ Custom Upgraded Turbo","offer_id":60622939652382,"sku":"RMS63-UT","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"F9x M8 \/ Custom Stock Turbo Gasoline","offer_id":60622939685150,"sku":"RMS63-ST93","price":850.0,"currency_code":"USD","in_stock":true},{"title":"F9x M8 \/ Custom Stock Turbo Flex Fuel (requires flex fuel kit)","offer_id":60622939717918,"sku":"RMS63-STE50","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"F9x M8 \/ Custom Upgraded Turbo","offer_id":60622939750686,"sku":"RMS63-UT","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"F95 X5M \/ Custom Stock Turbo Gasoline","offer_id":60622939783454,"sku":"RMS63-ST93","price":850.0,"currency_code":"USD","in_stock":true},{"title":"F95 X5M \/ Custom Stock Turbo Flex Fuel (requires flex fuel kit)","offer_id":60622939816222,"sku":"RMS63-STE50","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"F95 X5M \/ Custom Upgraded Turbo","offer_id":60622939848990,"sku":"RMS63-UT","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"F96 X6M \/ Custom Stock Turbo Gasoline","offer_id":60622939881758,"sku":"RMS63-ST93","price":850.0,"currency_code":"USD","in_stock":true},{"title":"F96 X6M \/ Custom Stock Turbo Flex Fuel (requires flex fuel kit)","offer_id":60622939914526,"sku":"RMS63-STE50","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"F96 X6M \/ Custom Upgraded Turbo","offer_id":60622939947294,"sku":"RMS63-UT","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/9846\/0446\/files\/A7409925.jpg?v=1793032358","url":"https:\/\/goracebox.com\/products\/bmw-m5-m8-x5m-x6m-f90-f91-f92-f93-f95-f96-s63tu-tune","provider":"Racebox","version":"1.0","type":"link"}