Just fitted V & H onto 09 Fatbob all went well but a final check of things i  noticed a connector oval shaped hanging down behind SE air cleaner. It is not O2 they are both accounted for , Dealer replaced air cleaner from standard to SE a while ago would it be a left over from that or have i unplugged something messing around with the pipes???

Cheers

Yep if i remember its for a flap on the standard air cleaner i fitted the high flow unit to my 09 FXSTB and it gives you a tie off to hang it up out of the way its not used

Thanks guys, I thought it might be something like that but it eases my mind  to ask