The reason the resistor is there is to reduce voltage to the factory ECU. The coil is matched for the systems reduced voltage on factory ignition system. If you remove the resistor your factory ECU will have a short life.
Now if choose to use an aftermarket ECU and coil you may be able to run without a resistor it depends on the manufacture. You must match the coil with the ECU. The ohm rating of the coil is just as important for peak performance.
