Not putting a for a for sale sign it, not yet at least but, how much interest would there be in a completely stock Versys-X300 muffler? I'm going to put my Yoshi slip-on on(?) and I do no want to keep the stock part.
I doubt you can sell the stock muffler for much. Plus, when you sell the bike most people would like the OEM take offs. I would not buy a bike with an aftermarket exhaust if the OEM did not come with the deal.