Hello! I recently bought my 2016 wrx. Came with a Cobb tune a tomei exhaust and a invidia catless downpipe. I’ve been having rich condition issues since I bought the car my long fuel trim or AF learning learning 1 has been around -25. I don’t know if this is normal also my fuel pressure is at 400 psi but since then I’ve replaced the maf sensor the air fuel sensor and I bought the Cobb catted j pipe and the issue remains the same I also went ahead and ran the stage 2 Cobb tune.nothing has changed maybe these reading are normal I don’t know this is my first Subaru and first tuner car any help is appreciated thank you for your time.