Ok this is what I got. 2007 CBR 1000 RR, 600 miles, two brothers exhaust. This is what the bike does. When I am pulling away from a light or a any stop the bike lags between 1000 and 3000 rpms. The power really kicks in when I hit the 3000 rpm mark.Past the3000 rpms the bike is smooth.The shop I take it to (Extreme Power Sports in Columbus Ga) tells me that this is normal an that is how Honda makes power in the low end. This doesn't sound right to me but I'm not really one to question a Honda service tec. This issue was present with the stock exhaust. I have not power commanded it yet becuase the shop said it was not needed.