I was just driving my car (2011 wrx, catless dp, perrin exhaust, forge bpv, perrin tmic with torqued performance stage 2 tune) and went to pass someone on the freeway at about 60-70% throttle after building boost for a matter of a few milliseconds my car stop pulling and slowed down and i heard a banging sound (i felt as if my tmic had came unbolted and smacked against my hood to try and explain the sound) then milliseconds later my CEl light came on and the car began to pull again but of course i let off completely. The CEL remained on for the rest of my 5 mile drive. I got to work and popped the hood and everything looked and sounded fine so i turned off the car and turned it back on again with the CEL. Any idea what the *&^$ just happened?
Note* I just installed the TMIC yesterday and had sent in two 3rd gear pulls to Eric who then returned with a new map (still stage 2 tuned).