Im personally going thru this right now. Sent mine back to them to wipe clean. Sold it to another dual motor owner.I sent email to their support, and they've confirmed that it is transferable for a $100 fee. You have to send the module back to them for reprogramming, to get it ready for another vehicle.
I purchased a actual m3p instead. I can personally vouch the boost 50 kit is worth every penny.
Having both the boost 50 and now a m3p there is very little difference EXCEPT from the launch.
The launch on the P is gut wrenching which is how it knocks it down to 3.2.