The upgrade kit will work for existing old 9500CI & STiR-Plus as follows:
Individual wants to replace old (ZR4 technology) shifters in the front
Individual wants to replace only the old (ZR4 technology) shifter in the back (due to accident, etc)
Sell as Laser ShifterPro add-on for BEL Sti-R Plus Units.
Sell as Upgrade or Replacement for NOldNZR4 technology units.
Sti-R Plus (old)
Includes (2) ShifterPro sensors & Bridge Box that allows direct communication w/all the above devices.
Optional Laser ShifterPro Pack (Model 01000481) must be added for rear Radar protection