Anybody have any experience with the D and D true duals (called true duelies)? I am considering them with the Thundermax tuner since the V&H true duals won't accommodate the wide band sensors of the TM. I am told the Fat Cats are the best performers but I want true duals and not a ghost pipe.
thanks

Warren, do you have the O2 bungs already installed in the V&H TD headers (07 headers)? From everything I've read, the front bung works fine on them, but the rear has a small fitment problem, but certainly not anything that can't be easily overcome by a little tweaking of the bung or the Transmission cover. If nothing else, pull the rear header, have a muffler shop cut the bung off, weld up the hole, then install another bung at a better angle. Unless you are unhappy with the pipes, odds are that every pipe is going to require some modification to get the longer O2 sensors on the TMAX to clear, as the stock sensors on the 07's are shorter in length. The D&D is what Zippers may use, but there are hundreds installed on V&H and RH pipes. If you have pre 07 headers, pulling them off and having a couple of bungs welded in is a simple thing, IMO.