you could do anything as long as you have the patience, money, and time. the above posts mention that its a pain in the ass to install, too many parts and a lot of modifications. you could put one on a 7bolt head, but it would just bottle-neck all the air. the ports on a stock 7 bolt head are smaller compared to the cyclone intake ports.
__________________
"All I can tell you is... the gun had an owner, something happened, and suddenly the gun didnt have an owner anymore."