Anybody running the NGK AFX wideband setup? I just bought one and after doing a few searches online and other forums a lot of ppl think it’s one of the top/the best for the cost. Also how often do u need to do a free-air recalibration on these? One thing I didn’t seem to like was the fact that u need to get a ‘special’ bosch/ngk o2 sensor if the current one goes out, is that true?