MSD81 Conversion

The MSD81 conversion upgrades your BMW from the older MSD80 DME to the more capable MSD81 platform. The MSD81 offers improved fuel delivery mapping, better knock control, and broader tuning headroom — making it a popular choice for performance builds and reliability upgrades alike. We handle the full conversion including cloning your existing data, flashing the new unit, and verifying operation before it ships.

• MSD80 → MSD81 platform upgrade
• Existing calibration data cloned and transferred
• Improved knock control and fuel mapping
• Compatible with E-series BMW (N54 engine)
• Supports aftermarket and OTS tune files
• Mail-in service available