I've never heard of it either. Personally, I think CAI's are a waste of money on this truck unless you are using other mods (i.e. a cam) that can benefit from it. I wasted $300 on my K&N and can't say I noticed any performance gain or improved mileage.
It looks cool, but seriously doubt it is adding 21 rear wheel horsepower. Also, notice in the ad they say the Hemi Ram has "340 hp and 390 ft/lbs of torque"? They seem to be getting the cars and trucks mixed up, which makes me wonder . . . hmmmmm, what else is inaccurate about their ad (hint, hint 21 rear wheel horsepower).
I had one of the original ones. It was for my 4.7L, then I sold it to 2004dRam ( I think that 's his handle)
I liked it , but the filter was a lot longer than in the pic,and it didn't have the snorkel thingy
Not a bad CAI if you don't expect too much....