Lol what underrated soap box? They put down the same power on dynos + or - 10 whp and they are rated 40crank HP apart. The wrx puts up faster straight line acceleration numbers and owners who have gone from an 09+ wrx to an sti say they feel slower stock at low speeds until the gearing gives the st ok the top end advantage.
I don't know what caused the codes yet. I'm going to wait to see if they come back.