Go on ebay & get the AERO muffler for about $100.00 -- It`s stainless steel & a straight thru muffler -- I, & many other of us Monaco Coach owners have done this change over -- You probably have a 4 inch exhaust system -- Makes for a little better fu...
I forget what Summer month it is, but all the trades have a vacation at the same time -- With the Canadian dollar exchange rate terrible for US traveling, most stay in Canada -- RV parks are full at that time -- Bill Willard