so, i'm looking at geting a 04 rev 151 with blown motor. what do you guys think about installing a 04 900 cat motor. its a low mile no mod motor and works real good but its in a 1m cat and that holds me back in the type of riding i like to do. one of my friends has a 06 doo its real nice to ride, but my cat eats it on the hill, but riding them back to back the doo is the one i would ride if i had a choice.