Ford OBDII Universal Cap - DO NOT FLASH

The DO NOT FLASH OBDII Plug is a must have for anyone with custom tuning or updated ECU file. This plug will make sure your ECU file stays safe from anyone hooking up to the OBDII port reducing the risk of someone flashing over your ECU file or tuning.

• Simple installation
• Universal fit
• Avoids the chances your ECU is re-flashed without consent