Two announcements have been recently made by the high performance BMW tuner, Dinan.
The first one is about the MSD81 software, which is the new DME that detects modifications to the cars’ computer ( DME, ECU ) that enhances performance. This software is finally available in stages 1 and 2 after a long wait. The third stage will come at a later date. The software is available for the 135, 335, and 535.
Secondly, the MSD81 software is now 50 state emissions legal.