So I'm not a professional by any means and have limited knowledge about cars as a whole but I'm having a pretty serious issue. I tuned my 08 wrx with Cobbs stock stage two tune. It has a Cobb down pipe and high flow intake. Also a blow off valve, dunno if that matters. The car was running great until lately. When I give it gas in second, third, fourth or fifth it revs up higher then it should. Then it when I let off the gas it catches and I can't "hit it" I have to gradually give it gas. Very frustrating on the highway when you want to just go.