I just installed the Volant intake for my 15 Silverado LTZ Z71 5.3L. only took me about an hour to installet, which surprised me since it was my first time installing anew aftermarket CAI.
pretty simple install, I am very impressed and pleased with the sound of my exhaust now. it sounds like I have a truck finally. I took it for a few miles drive after I stalled to see if there would be any whistling or any other issues. I did not have anything like that happen, only a nice growl when I accelerate and a slight increase in air "swoosh" sound when I was accelerating from a stand still. I haven't been in V4 yet but right now I am very impressed with it.