There's a good chance those are Wolf cans. That is the only brand I have seen that makes something that small and I have seen more than one 5th gen with a Wolf setup. Saw one in person locally. They sound great! Jose
I must admit I thought they might be from a Wolf system, however I have only seen Wolf cans is Carbon not stainless and every wolf system I've seen have a longer tip section that is also bent. Where the cans on my bike have a smaller tip and are streight out of the main can body. But then again that is just based on the systems I have seen on Google I have never seen one with my own eyes. Either way they do sound awesome and those I ride with have made comments that the bike sounds like it's running a hot small block V8