Hell I bought a set a while back from someone for $600 to put on the bagger and still haven't had time to try to start on that project. Got most the items I would need, still trying to figure out how to make a exhaust bracket that would have the same vibration rubber piece as my factory set up. Seen one guy on fb that was selling his bagger that had a set on it and asked him to send pictures of his bracket after discussing the exhaust and how he got it to clear the floorboards and stuff and he never responded. I also have an older Kerker 2 into 1 I thought about trying out on the bagger too. I should be able to make a bracket kind of easy for that one.
So, who is the company making the exhaust systems for the newer Bigdogs or is Bigdog Having them custom made?