{"title":"ECU Tuning","description":"\u003cp\u003eHigh-end ECU calibration and tuning solutions for maximum power, drivability, and reliability. Custom maps, off-the-shelf tunes, and full engine management — built for the track and the street.\u003c\/p\u003e","products":[{"product_id":"ms41-custom-na-calibration-m52-s52","title":"MS41 Custom N\/A Calibration — M52 \/ S52","description":"\u003ch2\u003eCustom bespoke OEM ECU calibration for BMW MS41-equipped M52\/S52 engines.\u003c\/h2\u003e\n\u003cp\u003eThis product is for Undisputed custom calibration work on Siemens MS41 factory ECU vehicles. It is intended for mechanically sound cars that are ready for live calibration, whether remote or local.\u003c\/p\u003e\n\u003ch3\u003eIncluded With Calibration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 2–3 hours of scheduled calibration time\u003c\/li\u003e\n\u003cli\u003eFuel, ignition, VANOS, and drivability optimization where applicable\u003c\/li\u003e\n\u003cli\u003eLive revision support during the scheduled session\u003c\/li\u003e\n\u003cli\u003eOne follow-up refinement session if required and vehicle configuration remains unchanged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Readiness Requirement\u003c\/h3\u003e\n\u003cp\u003eThe vehicle must be mechanically sound before the calibration appointment. Mechanical issues, wiring faults, fueling limitations, vacuum\/boost leaks, overheating, incorrect sensor calibration, or incomplete installations may delay or prevent completion.\u003c\/p\u003e\n\u003cp\u003eAdditional diagnostic or calibration time required due to vehicle-related issues is billed separately. If the car is mechanically unfit and delays happen, additional time must be purchased for the same day if available or for a future session.\u003c\/p\u003e\n\u003ch3\u003eAdditional Diagnostic \/ Calibration Time\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemote support: $100\/hr\u003c\/li\u003e\n\u003cli\u003eLocal or dyno support: $125\/hr\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDyno Sessions\u003c\/h3\u003e\n\u003cp\u003eDyno rental fees are billed separately and paid directly to the dyno facility unless otherwise stated. Remote dyno sessions require reliable logging, wideband feedback, and communication during the session.\u003c\/p\u003e\n\u003ch3\u003eMobile \/ Local Calibration\u003c\/h3\u003e\n\u003cp\u003eLocal calibration includes travel within 25 miles. Travel outside the included service area may require an additional travel fee: 25–50 miles +$50, 50–100 miles +$100, 100+ miles custom quote.\u003c\/p\u003e\n\u003ch3\u003eImportant\u003c\/h3\u003e\n\u003cp\u003eThis is a custom calibration service, not an off-the-shelf file. Results depend on vehicle condition, modifications, fuel quality, and data quality.\u003c\/p\u003e","brand":"Undisputed","offers":[{"title":"Default Title","offer_id":53394134565163,"sku":"UND-MS41-NA-CUSTOM","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/8574\/4427\/files\/ms41product_36dd9296-b9a6-407b-bb26-7cf642fcff17.png?v=1779037897"},{"product_id":"ms41-custom-fi-calibration-m52-s52","title":"MS41 Custom FI Calibration — M52 \/ S52","description":"\u003ch2\u003eCustom bespoke OEM ECU calibration for BMW MS41-equipped M52\/S52 engines.\u003c\/h2\u003e\n\u003cp\u003eThis product is for Undisputed custom calibration work on Siemens MS41 factory ECU vehicles. It is intended for mechanically sound cars that are ready for live calibration, whether remote or local.\u003c\/p\u003e\n\u003ch3\u003eIncluded With Calibration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 2–3 hours of scheduled calibration time\u003c\/li\u003e\n\u003cli\u003eFuel, ignition, VANOS, and drivability optimization where applicable\u003c\/li\u003e\n\u003cli\u003eLive revision support during the scheduled session\u003c\/li\u003e\n\u003cli\u003eOne follow-up refinement session if required and vehicle configuration remains unchanged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Readiness Requirement\u003c\/h3\u003e\n\u003cp\u003eThe vehicle must be mechanically sound before the calibration appointment. Mechanical issues, wiring faults, fueling limitations, vacuum\/boost leaks, overheating, incorrect sensor calibration, or incomplete installations may delay or prevent completion.\u003c\/p\u003e\n\u003cp\u003eAdditional diagnostic or calibration time required due to vehicle-related issues is billed separately. If the car is mechanically unfit and delays happen, additional time must be purchased for the same day if available or for a future session.\u003c\/p\u003e\n\u003ch3\u003eAdditional Diagnostic \/ Calibration Time\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemote support: $100\/hr\u003c\/li\u003e\n\u003cli\u003eLocal or dyno support: $125\/hr\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDyno Sessions\u003c\/h3\u003e\n\u003cp\u003eDyno rental fees are billed separately and paid directly to the dyno facility unless otherwise stated. Remote dyno sessions require reliable logging, wideband feedback, and communication during the session.\u003c\/p\u003e\n\u003ch3\u003eMobile \/ Local Calibration\u003c\/h3\u003e\n\u003cp\u003eLocal calibration includes travel within 25 miles. Travel outside the included service area may require an additional travel fee: 25–50 miles +$50, 50–100 miles +$100, 100+ miles custom quote.\u003c\/p\u003e\n\u003ch3\u003eImportant\u003c\/h3\u003e\n\u003cp\u003eThis is a custom calibration service, not an off-the-shelf file. Results depend on vehicle condition, modifications, fuel quality, and data quality.\u003c\/p\u003e","brand":"Undisputed","offers":[{"title":"Default Title","offer_id":53394134597931,"sku":"UND-MS41-FI-CUSTOM","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/8574\/4427\/files\/ms41product_36dd9296-b9a6-407b-bb26-7cf642fcff17.png?v=1779037897"},{"product_id":"ms42-ms43-ms45-custom-na-calibration-m52tu-m54","title":"MS42 \/ MS43 \/ MS45 Custom N\/A Calibration — M52TU \/ M54","description":"\u003ch3\u003eCustom Bespoke Calibration for BMW Siemens MS42, MS43, and MS45-equipped naturally aspirated engines.\u003c\/h3\u003e\n\u003cp\u003eDesigned for OEM+ drivability, modified street cars, track applications, endurance-style setups, and high-compression naturally aspirated builds.\u003c\/p\u003e\n\u003cp\u003eSupports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStock engines\u003c\/li\u003e\n\u003cli\u003eHeaders and exhaust 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appointment.\u003c\/p\u003e\n\u003cp\u003eMechanical issues, wiring faults, fueling limitations, vacuum leaks, overheating, incorrect sensor calibration, or incomplete installations may delay or prevent completion of tuning session.\u003c\/p\u003e\n\u003cp\u003eAdditional diagnostic or calibration time required due to vehicle-related issues is billed separately.\u003c\/p\u003e\n\u003ch3\u003eAdditional Diagnostic \/ Calibration Time\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemote Support: $100\/hr\u003c\/li\u003e\n\u003cli\u003eLocal \/ Dyno Support: $125\/hr\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDyno Sessions\u003c\/h3\u003e\n\u003cp\u003eDyno rental fees are billed separately and paid directly to the dyno facility unless otherwise stated.\u003c\/p\u003e\n\u003ch3\u003eMobile \/ Local Calibration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWithin 25 miles: Included\u003c\/li\u003e\n\u003cli\u003e25–50 miles: +$50\u003c\/li\u003e\n\u003cli\u003e50–100 miles: +$100\u003c\/li\u003e\n\u003cli\u003e100+ miles: Custom quote\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Undisputed","offers":[{"title":"Standard","offer_id":53520556589355,"sku":null,"price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/8574\/4427\/files\/ms4xproduct_a3708647-1513-4306-a520-5d206c10f3d8.png?v=1779037804"},{"product_id":"ms42-ms43-ms45-custom-fi-calibration-m52tu-m54","title":"MS42 \/ MS43 \/ MS45 Custom F\/I Calibration — M52TU \/ M54","description":"\u003ch3\u003eCustom Bespoke Forced Induction Calibration for BMW Siemens MS42, MS43, and MS45-equipped engines.\u003c\/h3\u003e\n\u003cp\u003eDesigned for turbocharged and supercharged street, track, and motorsport applications using factory BMW engine management.\u003c\/p\u003e\n\u003cp\u003eSupports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharged setups\u003c\/li\u003e\n\u003cli\u003eSupercharged setups\u003c\/li\u003e\n\u003cli\u003eE30 and Full E85 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