Yes, it is worth it! Spend the money and purchase it. It looks hot under the hood with the chrome Volant and it adds extra sound and performance. IMO. If you do purchase it, I would modify it to open up the air more. I originally installed it w/o cutting a rectangle next to the snorkel. After running it that way for about 6 months, I decided to cut the filter size opening next to the snorkel. I am SO glad I did. I immediately saw great returns in the sound and performance of the Cad.
In fact, my fiance wouldn't notice a dead skunk on the table, not to mention a new CAI installed. The first time she drove the car, she immediately questioned me about any new mods that were made on the car because it performed different. Go for it!!