After you install your can, make sure you wipe down the can and mid-pipe of finger prints. The heat from the ride will kinda "burn" them into the can in a way. You can remove the prints after that, but I hear it's a pain in the ass. But if you wipe it down, you should be alright.
Carbon Fiber has a tendency not to get as hot as Titanium, so it won't be as much of a problem. I'm not sure if fingerprints will burn into the carbon fiber, but for titanium make sure you wipe her down...