Tuner recommendation
#1
#2
I would go with VMP Custom Tuning, I bought a SCT X3 & a custom tune. My truck is fast know thanks to the 87 performance tune.
#3
To take advantage of a CAI, you will need custom tuning. Get a Gryphon or an Xcal3. Tuner sponsers of this site that are as good as it gets for custom tunes are Troyer Performance and Power Hungry Performance.
__________________
Jim
Jim