Okay so I’ve had my RS for about 5 months, it’s full bolt ons with a catless downpipe and tuned on an accessport by a local tuner. My o2 sensor and o2 sensor heater monitors won’t set even after I gave it to a performance shop to figure out for a month, this shop usually works on subies and Evo’s with some experience with an RS but no luck setting the monitors. I bought the car with the full bolt ons and maybe the emissions system was tampered with by the previous owner to remove CEL? Idk but I can’t really think of anything else besides going stock DP and stock tune, although I’ve seen this doesn’t solve it for some people with this issue while it does solve it for others. The car was is a rebuilt title if that could change anything. Any help/advice is appreciated, thank you.