Love the intake, feel a definite boost in performance and love the sound the engine makes now while revving in both low and high gears. However the instructions were rather hard to follow, ended up having to take off the front bumper to access a certain bolt. All in all took me and a buddy a few hours, but everything works and couldn't be happier.
Other than the rather tedious install of jacking up the car and taking the wheel off, it is the best bang for your buck. Sounds throaty at low revs, and like a typhoon at wide open throttle. Unfortunately it is not CARB certified so 5 years from now I will have to take it off to get it smogged. I have it on the 2013 Veloster N/A. It is also fun to be able to hear the throttle body open and close when you have the windows down and drive along.
Sounds great and gives a few more HP. Other than taking the inner wheel liner off (which you have to do) it was a super easy installation.