Had mine on for about 24hrs here, so far loving in. Great look, great sound, much better throttle response. Appreciate the upgraded clamps and MAF hardware on the first run.
Not too much of a performance boost, but in my experience, intakes only really give you the better throttle response and cool a sound. I'm sure i picked up a few ponys, but its not real noticeable.
Install is straight forward, but tight, but once its in there, it fits great. And the sonic has probably the easiest to remove airbox of any Chevrolet ever. I think I need to tweak the position on mine so the MAF as better clearance, but so far it hasn't touched anything.
Some pics: