Upgrade A few months later the output voltage has dropped and is about to swap out for the original part. It's been fine for a few months. Hardly output more than 13 volts without full exhaust, factory Ford 13.9 with full exhaust. It fits well at a good price but definitely not up to my standards. The full utilization with factory replacement is now 14.3 volts again. Should have just bought genuine OEM parts.