I was wondering if anyone has experience with the DUECANSHIELD v1.2 CAR KIT from http://togglebit.net/. The website says you can use this combo for "spoofing applications". Are they suggesting this combo can be used (with questionable legality) in place of a vehicle for diagnostic testing purposes? Just seeing if anyone has been able to accomplish this.

If your vehicle provides a CAN interface, you can communicate with its Embedded computer thru this board+shield as long as you upload the right software in the DUE.

You will find relevant informations about shields and software here: