For European Cars, Greddy the G2 Exhaust for Audi is available for Audi A4 1.8T 2WD, Audi A4 1.8T QUATTRO, Audi A4 2.8 QUATTRO, and Audi S4. GReddy uses its backgroun in no-baffle muffler design to improve the high resistance factory system while saving significant weight on most vehicles. The highly polished stainless steel muffler and angled oval tip are well suited to the car's factory styling.