With the right tools, ECM programming is no longer just for dealerships. Using a J2534 pass-through device, OEM software, and your vehicle’s OBD-II port, you can update, reflash, or recalibrate your ...

-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 ...