Muffler job for an abused 919
Hey all, I've got a 2002 919 that had a rough life before I got her. Just now I need to replace the muffler; someone did a 2-1 conversion on her, and then someone else cut some slits in the muffler. Does it make sense to buy a single muffler and just replace, or go back to 2 mufflers? I see I can get stock cans on eBay, but I assume just one wouldn't allow for a high enough flow. What kind of aftermarket cans do you guys like, particularly after a 2-1? Thanks for any advice.