Help with exhaust system

[4wheelergirl400ex]

We bought a new exhaust system for a '05 Honda 400EX it's a yoshimura system RS-3 not knowing we couldn't oder the headers later on we just ordered the muffler. The book we ordered it from at the Honda shop didn't have headers seperate from the RS-3 kit, they said that if we wanted to whole system we should have ordered it at the same time, they said that they don't think that we can order the headers now, does anyone know if we can order them seperate or if there is another set of headers we can get and put it on the 4wheeler that would work with the rs-3 muffler? I sure hope so because it was expensive and we need the headers and they won't let us return the muffler because it was a special order... I hope someone can help!!


Thanks in advance,

Jen