Finger prints and palm prints. They belong to you and only you. But when they're burned into your exhaust pipe, they can become permanent reminders of an install job gone just a little bit wrong.
Here's the rub. Any oily prints left during installation may be there forever once you fire up your bike and get the pipes hot for the first time.
Turn your grime scene upside down and wear gloves when installing your exhaust system. Doing this, along with making sure to wipe off prints, dirt and grease when the job's complete will guarantee a clean install. Now when you fire up your bike, the chrome will shine so bright there won't be a fingerprint in sight.