Well I did it. Sent my Arteon in to a business and had a stage 1 done to it.

ECU Racing Line tune
DSG APR tune
Racing Line R600 intake bundle

I thought it was amazing, but now it's just out of this world fantastic!
Did a launch control start on some traffic lights and on the car's screen it got to 238kw.
And it makes some choo-choo noises too.

I already want to do a stage 2 to it.