the easiest way is to disconnect the wire to the sensor, but run a 550k ohm resister in the knock sensor wire. the ecu will just keep reading the normal ohmage, and your right to roll.
advantages=none really.
disadvantages= it wont read knock.
what you should do= use a ecu that you can program what voltage knock it should listen too. i do this with my nismotronic. but thats another story. watch this