OBDII Universal Cap - DO NOT FLASH

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. Fits any OBDII equipped vehicle.  Simple installation Universal fit Avoids the chances your ECU is re-flashed without consent