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The "people" doing this are exactly the type of people you'd expect...

Just the first thing that came up in a youtube search, there are thousands more:

Wait, this isn't something that they configure the truck to do all the time? They can turn it on and off?

I thought this was some shitty way of being "special", like a loud exhaust, but being able to turn it on and off to gas people is downright evil.

It's not a "switch" per-se (though some of the kits have realtime tuning switches to make more/less smoke on demand).

It's a purposely poorly-turned engine + accelerator control.

TL;DR: poor turning, and floor it (high RPM).

Ah, even worse, you can gas people and your engine pollutes normally as well.

I didn't think people would be this shitty, but here we are.

A nasty combo of sadism and tribalism and stupidity.

Chest-thumping

Can you provide a citation on this? Sounds like worthless conjecture.

Please provide a arXiv claim to back up your post or delete it from HN.