Would it be worth it to run a complete dual exhaust on the 650R? Or are some of you firm believers in the scavenging effect? The reason i ask is it seems it would be pretty easy to just run it completely split the whole way. I know they used to do it on some of the baja bikes (1x to be specific) but have now switched away from that to the Procircuit. edit: I have searched and found this: http://www.thumpertalk.com/forum/showthread.php?t=225162&highlight=dual+exhaust but it didn't have the information I was interested in.