Actually it's $.99 at Radio Shack. Buy a package of 330 ohm 1/2 amp resistors. Put one in each 02 sensor. On the bike side obviously, after you disconnect the sensors. Heat shrink or tape up well so no water get in and you are finished. i just did this last week and have had no issues. There is a thread around here somewhere with a post about making your own homeade 02 eliminators. Do a search.