I did the complete 450 swap on my banshee, A-arms, hubs, brakes and then put raptor 700 shocks on it. I love them and it made the banshee ride a lot smoother and not so bumpy. The brake caliber itself on a banshee is a single piston and on the 450 it is a dual piston caliper. I don't think I will ever ride hard enough to notice the difference in the caliper's but it was just easy to do and swap on the banshee