The point is that most really loud cars are made to be loud. And usually equipped with a way to quickly undo that, if needed.
I’ve seen a TV report on some policemen hunting “tuned” cars. They were following an obnoxiously loud car in an unmarked police car, stopped them, and took measurements - suddenly, the car was “just normal”. But they knew what they heard, and the measurements they had taken from a distance had been way louder than the measurements taken at a defined distance from the exhaust, so they impounded the car for further investigation. And found a switch in the glove compartment that changed the car from “normal” to “loud”.
You’ve got to catch them red-handed. As long as they can disable or just quickly undo something like that before a MOT , it won’t get a single idiot and his car off the road.
Wouldn’t it be cheaper to make it an MOT fail?
The point is that most really loud cars are made to be loud. And usually equipped with a way to quickly undo that, if needed.
I’ve seen a TV report on some policemen hunting “tuned” cars. They were following an obnoxiously loud car in an unmarked police car, stopped them, and took measurements - suddenly, the car was “just normal”. But they knew what they heard, and the measurements they had taken from a distance had been way louder than the measurements taken at a defined distance from the exhaust, so they impounded the car for further investigation. And found a switch in the glove compartment that changed the car from “normal” to “loud”.
You’ve got to catch them red-handed. As long as they can disable or just quickly undo something like that before a MOT , it won’t get a single idiot and his car off the road.
Ban it for all new cars then.
These are aftermarket installs.