I have a 2011 GEN1 with the naturally aspirated 6.2L V8. It had what I thought was an inordinate throttle lag when going from a normal throttle opening to wide open. I experienced it most often when passing. I decided on an AIRAID intake after a helpfully revealing conversation with an AIRAID tech about how they design and engineer their intakes.
While installing the AIRAID I noted that the factory intake snorkel was poorly designed and had lots of design features that unnecessarily and peculiarly would introduce chaotic turbulence into the air. I smoothed out those features for the same reason one gets a multi-radius valve job. Then I installed another air intake path to the airbox because the factory snorkel was a much, much smaller diameter than the intake hose that runs from the airbox to the engine. Lastly, I asked AIRAID to send me a second length of rubber gasket to completely seal the airbox against the underside of the hood. They were very obliging and didn't charge me for it.
The result has been quite good. Most of the throttle lag was eliminated. Whether it was the intake, my smoothing work on the factory intake snorkel, or the installation of a second path for air into the airbox I don't know because I did it all at once.