I just bought a new set of V&H Big Shot Duals. The folks at Phat Performance gave me a great deal but unfortunately sent me a set of pipes for a 2009 road king instead of the 2010 set that I need. It seems that the only difference is the O2 sensor bung. The set I have appear to have a much larger bung than the sensors actually are. I have heard that you can run pipes without the O2 sensors as long as you have a fuel management system, just get a set of bung plugs. I have the V&H fuel pak. Dies anyone know if there is some kind of reducer available so I can install these pipes w/ my stock o2 sensors or do I send the pipes back? Can anyone offer some advise, I'd like to be riding!