If you’ve never heard the term flashing an ECU before, no, it’s not showing a form of identification or using a photo flash—or any other type of flashing for that matter. Flashing an ECU is tuning or ...
-it seems that those three little letters strike fear into many a promoter, track owner, or sanction head whenever they hear it. ECU stands for Engine Control Unit. Also called an ECM (Engine Control ...
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