EMiranda

Hi guys, I have a Yamaha XJ6N 2009. I changed the OEM exhaust. Now I need to eliminate the oxygen sensor. Can someone help me? I have 4 wires. 2 white, 1 black and 1 gray. I think it's necessary to connect a 330ohm resistor between the black and the gray wire. And another 1Mohm resistor between the two whites. Or is only a 330ohms resistance between the black and gray wire enough? Thank you for your help.