I have the same problem with those two pipes. It really sucks that there aren't any 4-4 exhausts available anymore
Thank God MAC still makes us a 4-1 despite all the negative comments I see. Otherwise half the bikes would be off the road.
A recent eBay auction sold a set of 4-4 for almost $500 despite the fact that they were rusted and needed repair. Ridiculous!
Business opportunity if any manufacturer is reading!!!