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What is ecu remapping? ECU, or Electronic control unit, is the electronic device that manages all the intricate functions of your vehicle's engine. This unit sends signals to your vehicle's ECU or Electronic control unit. It then interprets these signals, changes them into instructions in...

In the first article we reached the following conclusion:

The single biggest factor that determines an engine's ultimate power potential is the total inlet valve area

Not all cylinder head designs have the same flow efficiency for a given valve area though - and it is the...