So I have the same question and I didn't want to start taking apart the bags, brackets and what have you to slip off my old pipes (stock tour deluxe, 2007). Does anyone know the ID and OD of the stock muffler flange, where it meet the extension, mid bike? I'm trying to plan for the layout, including the gasket, but the Clymer's doesn't show me the stock pipe interfaces. I also noticed from pics that most HD pipe brackets are horizontal facing and the TD looks like it's vertical, so I imagine I could find or fab an L-bracket for this?
