Six pack hood scoop

I have a new six pack scoop, that I am going to install on an extra duster hood I have, but I noticed it seems very large ( quite a bit taller )compared with others I'v seen. Now I'm sure this is an after market peice. Were the original direct-connection scoops scaled a little smaller? I really prefer the smaller version better, and I'm wanting to know where to find the smaller one. Any ideas? I have not checked with mopar performance yet.