The Falco does have a different frame and swing arm, so the only way to know would be by trying them on. Anyone out there done that yet?
I've got a full Akra twin-can system on mine. It's originally off an Edwards rep. I've been thinking about putting the original headers on and getting a stubby GP silencer either made or modified and hanging it off the right side footpag bracket to clean up the rear end. So if you fancy a system that fits for certain, I can send you a few photos.