I would think Mustang and the other big guys check this fitment. I know my classic with a cobra is no problem with a Mustang. In fact, check with Mustang or Corbin, etc.
Suggest you change the title of your question to include "Custom". Try a search too. A ton of stuff is on these sites, that only gets posted once.
06 Kawi Vulcan Nomad - Cobra Lite Bar, Phat II Risers, Vista Cruise, Krusier Kady, Kuryakyn Longhorn Dually Pegs, Mustang w/ Backrest, Vance & Hines Dual Baggers, PC III, Cobra Luggage Rack, Electrical Connection LED R,B, T Conversion, Jay Stephens LED Tail Light, Classic Chaps, Avon Cobra's.