I looked that up and it sounds very similar to the tranzformer. The only difference seems to be the tazer goes in the odb port and the tranzformer has to be wired in.
Not exactly sure. I know that you can return it to stock,but I'm not sure how it is done. That's another something to look into, unless someone else on here has experience with it.
I'm really looking forward to this! I have always wanted a "switch" for the AWD in my charger. I hate how they sell it like you can turn it on and off as you wish. It's just a high end traction control feature..
I read somewhere that you can do this same functionality with a laptop, proper cable and specialty software. Unfortunately I have not been able to locate enough information to confirm this is possible, otherwise I'd have them unlocked.