Just got this issue yesterday and actually read your entire article. Good stuff! I ran the FRPP CAI for a while. It looks great under the hood but the JLT series 3 is way better and I really noticed a difference over the FRPP one like yours.
Yes they are 2010-2012 rocker panels with the Roush side splitters. Also have the rear splitters on now. The newer rocker panels will fit on the 05-09 just need a little trimming up front.
The cobra R hood IMO is probably one of the better looking cowl hood for the 05-09. Haven't seen it in person yet but if I buy one it will be the Cobra R. They look great on the cirvinis mustang.
(Most recent but not best when I installed roush rear and how it looked before) thanks! yes I painted it. Before I installed the 2011 rocker panels and had the original painted ones, I couldn't decide either to paint it like the CS Mustangs or like the GT500. I did both and liked the GT500 style...