I was thinking about getting a Racefit Mega exhaust (http://www.racefit.co.uk/mega/index.htm). Everyting i've read about this exhaust says they are just way to loud but that has been on ZX10R & GSXR1000's and before they brought out a baffle for them. Does anyone have this exhaust on a 600 or heard it on a 600? Is it just way to loud? Is there a difference between an exhaust on a 600 to a 1000? I don't mind loud but some have said they were not allowed to race with them cause it did not pass the noise test at a race track. These are not cheap so i don't want to waste my money, but in my opinion it's the best looking exhaust i've found so far.