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Not DEFCON, CCC.

They have their own video streaming service which doesn't do the tracking Youtube does:

https://media.ccc.de/v/32c3-7331-the_exhaust_emissions_scand...

So the disassembling confirms that ECU is just not feeding the exhaust with AdBlue/Urea. So what is the advantage for VW in all this?! It does not make your car more powerful, it makes it less eco-friendly, you are just saving money on AdBlue/Urea.

They could easily reverse it back, the power will be the same, pollution levels will be okay, only AdBlue/Urea consumption will increase.

I've read that US regulations required no additives outside of regular service intervals.

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