I got that, and still get that now. i was on a housing estate, but had to go up a steep hill, because i had to give it abit more throttle and it was at a point where the exhaust drones i got loads of abuse from two blokes coming back from the pub or something "theres bloody kids down here!!" must have been around 12 midnight and i was doing around 20mph at the most. Couldnt believe it. They automatically asume that because theres a hint of noise coming from your exhaust you must be speeding
I've had that with a standard exhaust people waving their arms at me to slow down and i was only doing 30mph !
I got pulled in the G string because it sounded like I was speeding even thought the copper didn't see me *
ewwww speeding in a G string , you should lube up well incase of chaffing mate