IE Catback Exhaust System For Audi B9/B9.5 S4

The IE Catback Exhaust System for your Audi B9/B9.5 S4 incorporates our in-house engineered DroneTrap technology to deliver a truly aggressive exhaust note without any annoying drone or rasp. Engineered with cutting-edge design features, including mandrel-bent stainless steel, TIG welding, multi-point reinforcements, and oversized quad tips. Experience the elevated and enriched sound your S4 deserves. NO CHECK ENGINE LIGHTCEL FREEWITH STOCK DOWNPIPE ENRICHED SOUNDDRONETRAPWITHOUT DRONE LARGE SLASH-CUTQUAD TIPSSPORTY DESIGN