EFI Electronic Fuel Injection Controller
EFI contoller power commander EFI controller

The TFI is a piggy-back EFI controller because it does not replace the stock ECU, but rather monitors the signals to the injectors and makes fuel adjustments based on the pot settings. The TFI is equipped with four pots which allow for quick fine tuning by the end user without needing a computer. There are no refunds on EFI units.

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