got a 08 fatboy with vance hines shortshots. love the sound but a bit louder than i like anymore, guess im getting old, bought a set set there quiet baffles and was wondering if i need to install the wrap that came with the baffles. do they make that much of a change if i do or do not? reason im asking is i looks like im going to have to remove the exhaust pipes to install them and i only want to do that once. also do i have to replace the gaskets on the header pipes every time i remove them from the cylinder heads? thanks !