01/06/2011 03:19 - admin

Dubbed the Challenge Edition, the model features a supercharged 3.0-liter V6 that has been equipped with a revised ECU and a stainless steel sport exhaust system.[...]

Source: worldcarfans

https://www.tuning-links.com/news_1840_Audi+S5+Cabrio+Challenge+Edition+by+STaSIS.html