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Siemens ECU DME Flash Tool for MSV80 / MSV80.0 / MSV80.1 for N51 and N52N engines- Found in E90 E60 E87 E89 Z4 etc
MSD80 / MSD81 for N54 / N54T engines- Found in E90 E60 E87 E89 Z4 etc
Requires FT232RL chipset cable. https://www.ebay.com/itm/284709097537
BimmerTuningTools is a recommended MSP developer. All purchases, software download, activation and support are dealt with on the BTT website.