I have relocated/extended my cvt exhaust. I tokk some 2,5 inch hose and some pipe bends and driilled 2 holes in the rear fender to route the pipe between rear fender and the rack and pointed down under the fender again.
I didn't have a problem with debris entering the cvt exhaust with the stock location as long as i didn't drive to deep or sprayed a loot of water at the cvt exhaust tip.