Hi, I ordered a two bros VALE slip on exhaust for my Ninja 650RL from America. The problem is the Aussie bike has an O2 sensor whereas the american bike does not and so the replacement pipe has come without the sensor port. This forced me to halt the installation and I need to take it to a bike shop. I have 2 options: #1 use a sensor bypass and disconnect it completely or #2 see if some1 can weld an O2 sensor bung on the pipe for me. My question is. What, if any, drawbacks will I notice by removing the sensor all together? Will I need to have it remapped? Or would I be better off getting an exhaust joint to modify the pipe to allow for the sensor?