Wow, that is news to me!
But if the "without" sound was the second one, I think I like it better.
And crap like this is a big turnoff to an audiophile like myself. A diesel should sound like a diesel. I love how diesels sound. Low pitch, very robust, industrial sound - like I said - 6 cylinder car diesel should sound much like a 10+ liter lorry engine. And that's how I would like the best.
I don't need no fake-ass "sound actuator" for my '96 5 cylinder Audi diesel. It sounds awesome by design!