We took a 2018 Tesla model 3 Long Range Rear Wheel Drive and we decided to convert it to make it dual motor. We had to instal a front motor, the front wheel hub, the 2 shocks,the axle, coolant hose, high voltage cables and the low voltage cables. What a challenge!
The major challenge was to reprogram the rear motor. It's the master while the front motor is the slave. We replaced the battery for a dual motor one because the connections for the front motor were missing on the original battery.