I'm ready to buy a 06 YZ450F but, where I ride they require all 450's run a FMF Q,Q2 exhaust. I keep hearing that the 07 is Quiet. Do you think it is as quiet as the Q2? They will do a test on the pipe to see if it will meet the noise level. Maybe I should get the 07 if I wouldn't have to buy a new pipe. Any thoughts!!