{"product_id":"bmw-s58-custom-tuning-g8x-m2-m3-m4-x3m-x4m","title":"BMW S58 Custom Tuning — G8X M2\/M3\/M4 \u0026 X3M\/X4M","description":"\u003ch2\u003eBMW S58 custom tuning, built around your car\u003c\/h2\u003e\n\u003cp\u003eThis is a true Undisputed custom calibration for the vehicle, hardware, fuel, transmission, and goals confirmed after checkout. It is not a generic one-file-fits-all map. Choose stock, upgraded hybrid, or full-frame turbos. Fuel system, ethanol blend, port injection, boost-control strategy, and transmission requirements are finalized with our team before scheduling.\u003c\/p\u003e\n\u003ch3\u003eSupported applications\u003c\/h3\u003e\u003cp\u003eG80\/G81 M3, G82\/G83 M4, G87 M2, F97 X3 M, F98 X4 M, and other supported S58 applications. Exact DME generation and unlock\/access requirements are confirmed after checkout.\u003c\/p\u003e\n\u003ch3\u003eIncluded service\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre-session build and readiness review\u003c\/li\u003e\n\u003cli\u003eOne confirmed hardware configuration and one primary fuel\/map\u003c\/li\u003e\n\u003cli\u003eScheduled remote connection and datalog review\u003c\/li\u003e\n\u003cli\u003eCalibration changes and revisions completed inside the purchased time block\u003c\/li\u003e\n\u003cli\u003eDirect communication with the Undisputed team throughout the scheduled session\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAfter purchase and scheduling\u003c\/h3\u003e\n\u003cp\u003eOur team will email the address used at checkout to confirm the vehicle, hardware, fuel, tuning goals, and an available appointment time. Text or phone follow-up may be used when needed. Tuning sessions are scheduled in Eastern Time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded time:\u003c\/strong\u003e Stock Turbos — up to 4 hours. Upgraded Hybrid Turbos — up to 5 hours. Full-Frame Turbos — up to 6 hours. Time includes setup review, connecting, logging, calibration changes, revisions, troubleshooting, and communication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModern DME note:\u003c\/strong\u003e A compatible flash-platform license and any required DME unlock are separate unless explicitly stated. Many vehicles produced after June 2020 require an external unlock before tuning can begin.\u003c\/p\u003e\n\u003ch3\u003eBefore the appointment\u003c\/h3\u003e\n\u003cp\u003eThe car must be mechanically healthy, leak-free, fueled correctly, and ready to log. You will need a compatible computer\/device, reliable internet, the required flashing platform, and any required cable or adapter. Hardware, dyno time, software licenses, unlock services, and repairs are not included unless specifically listed.\u003c\/p\u003e\n\u003ch3\u003eWhy Undisputed\u003c\/h3\u003e\n\u003cp\u003eUndisputed brings professional calibration experience developed since 2017 across factory and standalone engine management, multiple fuel combinations, daily-driven street cars, and serious track builds—including 800+ horsepower applications for customers in the United States and abroad. Our standard is clear communication, useful data, clean drivability, and calibration decisions built around the actual vehicle.\u003c\/p\u003e\n\u003ch3\u003eTime and revision policy\u003c\/h3\u003e\n\u003cp\u003eThis is a scheduled professional service, not an open-ended support window. Mechanical issues, connection problems, incomplete hardware, or incorrect fuel can consume the purchased time and may prevent completion. Work beyond the included block must be purchased through the Additional Calibration Time product and scheduled before more tuning continues. New turbos, injectors, fuel systems, fuels, engine combinations, or other major hardware changes may require additional time or a new tune.\u003c\/p\u003e\n\u003cp\u003eSpecific power is never guaranteed. Results depend on vehicle condition, hardware, fuel quality, environment, and safe operating limits. The customer is responsible for legal and emissions compliance; Undisputed will not calibrate public-road vehicles to defeat required emissions or safety systems.\u003c\/p\u003e","brand":"Undisputed Racing","offers":[{"title":"Stock Turbos","offer_id":55510327886123,"sku":"UND-S58-STOCK","price":599.99,"currency_code":"USD","in_stock":true},{"title":"Upgraded Hybrid Turbos","offer_id":55510327918891,"sku":"UND-S58-HYBRID","price":699.99,"currency_code":"USD","in_stock":true},{"title":"Full-Frame Turbos","offer_id":55510327951659,"sku":"UND-S58-FULLFRAME","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/8574\/4427\/files\/undisputed-s58-custom-tune-box.png?v=1788965341","url":"https:\/\/undisputedracing.com\/products\/bmw-s58-custom-tuning-g8x-m2-m3-m4-x3m-x4m","provider":"Undisputed Racing","version":"1.0","type":"link"}