{"product_id":"m-engineering-ecu-tune-mclaren-m838t","title":"M-Engineering ECU Tune McLaren M838T","description":"\u003cp\u003e\u003cspan\u003eUnlock additional performance and take greater control of your McLaren with the M-Engineering M-Tuner Live Map Switching Calibration Suite. Developed specifically for McLaren vehicles equipped with the 3.8L twin-turbocharged M838T V8 engine, this advanced ECU tuning system combines performance software, wireless OBD flashing, real-time datalogging, and customizable engine management features in one comprehensive package.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional ECU tuning solutions that require the ECU to be shipped out for every calibration update, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eM-Tuner v3 features wireless OBD flashing technology\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing owners to install compatible M-Engineering calibrations directly through the vehicle's diagnostic port. Following a required one-time ECU bench procedure, customers can manage supported tuning updates and switch between available performance calibrations without repeatedly removing the ECU.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe M-Tuner Calibration Suite includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStage 1 and Stage 2 performance calibrations\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, developed for different vehicle configurations and supporting modifications. M-Engineering also supports Stage 2+ applications, with appropriate additional hardware and calibration requirements. Original purchasers can update between eligible off-the-shelf tuning stages without additional calibration charges.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne of the system's most valuable features is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLive Map Switching\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, which allows drivers to change between four preset calibration maps using the factory cruise control controls. The standard configuration includes dedicated maps for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e91-octane, 93-octane, and 100+ octane fuel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, along with a Valet Mode designed to limit engine boost, load, and throttle response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBeyond performance tuning, the M-Tuner provides a comprehensive collection of vehicle management functions, including \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh-speed datalogging, live engine data monitoring, fault-code clearing, and dyno mode control\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. These features allow owners and technicians to monitor vehicle operation, review performance data, and manage supported ECU functions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdditional calibration features include \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eautomatic start\/stop disable, left-foot braking support, kickdown disable, and Loud Start functionality\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. These software options provide greater flexibility in how the McLaren behaves during everyday driving and performance-oriented use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor owners with upgraded turbochargers, fuel systems, or other significant modifications, M-Engineering offers optional \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eremote ProTuning and custom calibration services\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. These services allow the ECU calibration to be tailored to specific hardware configurations and fuel requirements beyond the standard off-the-shelf maps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe M-Tuner system requires an initial \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eone-time ECU bench procedure performed by M-Engineering\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Once this process is complete, the ECU is returned to the customer for reinstallation, and the included wireless flashing device can be used for subsequent supported calibration updates.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor McLaren owners seeking improved performance, flexible fuel-specific calibrations, and convenient access to advanced ECU features, the M-Engineering M-Tuner Calibration Suite delivers a comprehensive tuning solution designed around the M838T engine platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFitment Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren MP4-12C \/ 12C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models with the 3.8L twin-turbocharged V8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 650S Coupe \/ Spider\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 675LT Coupe \/ Spider\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 570S Coupe \/ Spider\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 570GT\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 600LT Coupe \/ Spider\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e models\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManufacturer also lists support for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren 625C, 620R, and 540C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with calibration availability requiring confirmation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDesigned specifically for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.8L twin-turbocharged M838T V8 engine\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNot compatible with McLaren vehicles equipped with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.0L M840T engine\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including the 720S, 750S, and 765LT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStage 1 and Stage 2 calibrations are available for compatible vehicle configurations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStage 2+ support may require additional fuel system components or other supporting hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOne-time ECU removal and bench procedure required before wireless OBD flashing\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eECU must be shipped to M-Engineering for initial programming\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSubsequent supported calibration changes can be performed through the M-Tuner device\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStandard Live Map Switching includes 91, 93, 100+ octane, and Valet calibration slots\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFuel-specific maps must only be used with the appropriate fuel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom map configurations and ProTuning are available separately\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVehicle-specific calibration availability should be confirmed before ordering\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProfessional ECU removal and reinstallation recommended\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eECU tuning may affect emissions compliance and factory warranty coverage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eM-Engineering \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eM-Tuner v3 wireless OBD flashing dongle\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eM-Engineering ECU performance calibrations for the selected M838T application\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStage 1 and Stage 2 off-the-shelf calibration support\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLive Map Switching functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFour standard calibration map slots\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-speed datalogging functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLive engine data monitoring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFault-code clearing functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDyno Mode enable\/disable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAutomatic start\/stop disable functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLeft-foot braking support\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKickdown disable functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLoud Start functionality\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOne-time ECU bench programming service\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eM-Engineering technical support\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSold Separately:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eECU removal and reinstallation labor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eECU shipping and insurance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eM-Engineering M838T Motorsport Tuning Package\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eM-Engineering remote ProTuning and custom calibrations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStage 2+ supporting hardware, where required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdditional performance exhaust, intake, or turbocharger components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Specs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManufacturer: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eM-Engineering\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProduct Name: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eM-Tuner Live Map Switching Calibration Suite\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProduct Type: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eECU Tuning \u0026amp; Wireless Flashing System\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngine Platform: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMcLaren M838T\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngine Configuration: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.8L Twin-Turbocharged V8\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupported Models: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12C, 650S, 675LT, 570S, 570GT, 600LT \u0026amp; Select Additional M838T Applications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFlashing Device: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eM-Tuner v3\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFlashing Method: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWireless OBD\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInitial ECU Bench Procedure: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eRequired\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLive Map Switching: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMap Switching Controls: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFactory Vehicle Controls\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStandard Map Quantity: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMap Slot 1: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e91 Octane\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMap Slot 2: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e93 Octane\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMap Slot 3: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100+ Octane\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMap Slot 4: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eValet Mode\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOff-the-Shelf Calibration Stages: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eStage 1 \/ Stage 2\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStage 2+ Calibration Support: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAvailable with Appropriate Hardware\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDatalogging: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLive Data Monitoring: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFault-Code Clearing: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDyno Mode Control: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAutomatic Start\/Stop Disable: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLeft-Foot Braking: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSupported\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKickdown Disable: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLoud Start: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom Calibration Support: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAvailable Separately\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMotorsport Feature Expansion: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAvailable Separately\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTypical ECU Bench Turnaround: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eApproximately 24 Hours After Receipt\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManufacturer Support: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWireless OBD ECU flashing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows compatible performance calibrations to be installed and updated through the M-Tuner v3 device following the initial ECU bench procedure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStage 1 and Stage 2 performance calibrations\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide tuning options for compatible stock and modified McLaren M838T applications, with eligible off-the-shelf stage updates included for original purchasers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLive Map Switching with four calibration slots\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows drivers to select between 91-octane, 93-octane, 100+ octane, and Valet maps using factory vehicle controls.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdvanced datalogging and diagnostics\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide live engine data monitoring, fault-code clearing, and dyno mode functionality for performance analysis and troubleshooting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdditional ECU control features\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e include automatic start\/stop disable, left-foot braking, kickdown disable, and Loud Start functionality.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExpandable tuning capabilities\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e support optional custom calibrations, ProTuning, and motorsport features for vehicles with extensive performance modifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"M-Engineering","offers":[{"title":"Default Title","offer_id":67884276842816,"sku":null,"price":3995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/7587\/4624\/files\/M-Engineering_Wireless_Dongle_ac560841-ab43-4559-8558-08ad14fa552e.webp?v=1793096673","url":"https:\/\/www.forzamotorworks.com\/products\/m-engineering-ecu-tune-mclaren-m838t","provider":"Forza Motor Works","version":"1.0","type":"link"}