I am looking for a good o2 simulator that could handle the elements of minnesota weather! Something that I wouldnt have to cut wires to install. I have looked on ebay and saw some that looked like a threaded fitting to space the sensor away from the pipe, but not sure how that works or if it would. Im not haveing any trouble codes just want to get ride of all the flow robbing bends and restrictions. Any help would be great!