Does anyone know anything about these? http://pages.ebay.com/link/?nav=item.view&id=261239975019 Only thing I can find is on monster forum and they seem to have mixed reviews O2 sensor eliminators fitted - UK Monster Owners Club Forum I know custom tune is best can't justify £500 so looking at my options. Not looking for power I've only got the baby 796 just want to reduce the popping on decel.