Notice to all who rev the piss out of their motors: start teaching yourself to say whoa after about 8500. All engine components will like to for much longer!!
sorry!
I wrote that the dyno was from a std 2005 , but I posted the graph from one with full akro.
Here is the link with both original and with full akro akra vs orginal 2005 FS 650
Regarding the two dyno graphs, I'm pleasantly surprised that the stock exhaust produces results that are so remarkably close to the race system!! It is kind of difficult to discern the Max Power for the original exhaust - - Is it 59.2 ?