I did a quick search and only thing I found was someone else asking the same question almost a decade ago. If I am observing out stock systems correctly, both exhaust exit the engine and enter into the same CAT chamber where the distribute to both exhaust pipes via least resistance. Would capping off the exhaust outlet going to the left side of the bike essentially make this a 2-into-1? I can imagine there being an issue with the turbulence caused by the exhaust trying to exit the short distance between the split and the cap point. Anyways I was just wondering if any of the exhaust intelligent people here that also like to save money where they can have looked into this possible mod.