This is the way to go
Sounds awesome. Nice & grumbly/popy at idle, quite enough under Normal throttling that it's not annoying. But then you stand on it she opens up beautifully. Nice deep throaty, monster of a sound. Also if you have an intake installed (CTS-Turbo look then up) you here they open up like never before.
AUDI A3 with Borla Exhaust
Deep pleasent sound, not noticable from inside car at cruising speeds. Considered Stasis, but at nearly twice the price and they use Borla muffler, I couldn't justify it. too soon to comment about mileage or power gains, I will say it revs easier and faster. I has been on the car for less than a week.