The abt exhaust has no sound. It's EXACTLY the same as stock. I was very disappointed. The system fits just after the mid silencer so it's has 2 silencers.
What you probably experienced in the demo van was the very cheesy but work well Kufatec sound booster. A lot of vag cars have sound boosters from stock. It's a speakers on its own pipe that plays sound from under the car as you rev up. Google it.
A bit cheesy for my liking as it's completely fake.
I really want to get a custom straight through pipe made to delete the mid silencer to give it more meat.