I have a 2022 wrx base model. I put a K&N filter, eliminated second filter which attached to box. other than that, it's completely stock. Boost has increased from11 to 12.6psi. I ran local auto X a couple time, I drove hard at 8000miles. Boost increased to 15.2psi, rev limit also increased to about 6000prm. ECU remapped by itself? I would like to get your opinion. Thank you.