finally finished up the exhaust on the 20v. prior to this however i was using the 20v b-pipe with its o2 sensor. now i am using a pipe with a 16v o2 sensor in it, and it would be very difficult to remove it. i am thinking it would be simpler to just rewire the 16v one for the 20v plug? anyone done this that can remember how to match the 4wires together?