Any mod will help any engine, but without a Baseline Dyno, you won't truly know how much each helps. I do love the sound of the CAI. Almost like kicking in the 4-bbl's
I had my 2009 SE with the 3.5L and magnaflow dual exhaust dyno'd also was running the 891 tune from the predator tuner, got around 240 hp. finally got it into the 15's before trading it off the the RT I have now.