I love my stock WR426 muffler, sound/looks great and performs great w/o the baffle, not obsessively loud. But I need a new header, my stock header is dented and slightly bent. Are there aftermarket headers that will mate up to the stock muffler? If not, are there any full aftermarket systems that I should be looking for used? I use my bike both on the street and off-road and it can't be too loud but I could always use some more power. It needs to have a spark arrestor as well. I would love to find a used system for $200. I guess my other option is to find a stock header for like $40. It would be nice to get an aftermarket pipe for some more power.