I went and modified my 2012 base cab 2.7l 4 cylinder truck. Wanted a little bit more get up and go!
With less than 2500 miles on it, the 2012 tacoma seemed to be slower than the 2003 with Cold air intake.
So, the Doug Thorley Short Headers, since I'm in CALI helped significantly, along with the Aero 2525 Muff, and the AFE Cold Air intake.
It seems the ECU did self adjust itself after driving it like I stole it, and finding what to do from some other site.
One note, the AFE COLD Air Intake for up to 2011 has an issue with the positive Crankcase valve the engine. Ended up going to the hardware store for several 90 degree union valves to make the connection the engine.
Truck runs great, and base tone loud!
I do have th say that the front bumper scratches way to easy, and flimsy.. have some small scuffs from stupid people, and etc.