first off i have a 2004 audi a4 1.8t 6speed manual with a apr chip in it. My first question is what does the 2 mean on the gauge cluster above the instant mpg? I bought the car used and it didnt have a owners manual with it. Any help would be excellent. My second question is I live in minnesota and during the winter months it becomes pretty cold! Do i have to detune my car back to stock or will it be fine running the apr stage 1 chip? One more quick question what are you guys running for psi on a stock motor with a chip? My is running 17psi max. Is that to much boost or will that be fine? any suggestings would be appreicated.