I think the holdup is figuring out how to control the gearbox. Iām not aware of any aftermarket controllers that would work with the stock ecu. You could probably go custom Motec but now $$$$ cost is getting serious
Controlling it. And yes it would be bad ass, but at it will be expensive as heck too. But as of right now noone has made a controller for it as it probably won't be a volume seller.
Most people wouldn't have the cash to drop $30k for a transmission that's only a hair faster than the current one in the car. If this was back in the early 2000s with crappy slushboxes sure, but given the 10R80 exists and it can be made better for significantly less, there's very little demand for that kinda money only to be a little bit faster. You're better off investing $30k in a turbo and engine and suspension mods than a new transmission.