this might be a tough one to answer. I was wondering how much engine noise is normal. I havent ridden any other harley to find out for myself. I have rush 2.0" slip on's on my 2003 ultra classic. the motor has a stage one and a fuel map put in by the dealer. I can hear the motor over the exhaust. I cant tell if it is a pinging or something else. I can hear it most at 30 mph. Is any other motor quiet or loud. I know how hard this might be to answer but its worth a shot thanks!