Integrated Engineering Cat Back Exhaust SystemThe IE Catback Exhaust System for your Audi C8 RS6 or RS7 incorporates our in house engineered DroneTrap technology to eliminate drone and deliver the aggressive sound expected from a V8 engine. Engineered with cutting edge design features including mandrel bent stainless steel, TIG welding, multi point reinforcements, and oversized double wall black tips. Experience a new elevated, enriched, and refined exhaust note from your twin turbo powerhouse.