Agreed, it's really just a light show. I've had one before....pointless
Please, please, please do some searching on this forum and some reading up on your car and what people usually do. If you have questions after that, then start to ask. Pretty much every new topic you have posted has been answered before.I have a 2000 9-3 T7, if I were to use a wideband with a wideband o2 shoukd I retune?
Great thanks! !get a wideband a/f gauge, usually they come with a o2 sensor and bung. drill a hole in your downpipe BEFORE the cat, weld the bung in, screw in o2 sensor, run wires to gauge in car, and thats all you really need to do. other than run power wires to the gauge