I got my 05 Exec this spring and installed a engineer kit last week. Everything is ok part from a hi pitch noise turning left lately (also before installing the kit). I have searched and found some indicating the same but not what was found, closest was a description of some joint in the exhaust that I still have to check. Olov
Welcome to Prius chat! Hope everything works out for you and your PHEV and we're looking forward to hearing more about it.