What is this obsession with youngsters (and some that are not so young) to make their cars pop/bang/backfire on the over-run and when changing gear?
When I was interested in engines, such a thing was said to be a bad thing, as the pressure waves from the mini explosion sent shock waves back to the exhaust valves,and impeded exhaust flow.
I presume it is done by ‘mapping’ the ECU, to over fuel, and probably advance the timing a bit too to give this appearance of a highly tuned engine, yet, highly tuned engines dont pop and bang!
Am I the only one mildly annoyed by this?