OK, I replaced the Fuel Filter, PCP Valve over the weekend. While I was in there, I cleaned the TB, IAC, and EGR valves with seafaom. Put it all back together, and then did another seafoam treatment. Once that was all burned out, I reset the ECU. The car is noticably more powerful, and I sleep better knowing that the TB is shinny now, but after all that, it still isn't quite as smooth as it should be at 2500+ rpm. (original problem) Any other suggestions before I take it in to the dealer?