I need to get an O2 simulator for my truck. It appears my cat was gutted by the previous owner so I'm getting the code for the O2 sensor. I've looked through some old posts on simulators and wanted to check with those who have purchased them. If you've had one on for a year or few years, have they held up? I'm debating whether to get one from the Fastman or look around for something a little cheaper. I want something that will perform well, have a long life, and be easy to hook up. Give a yell back on good or bad experience with them. Thanks