The Borla Cat-back Exhaust System 97-03 Audi B5/B6 A4 features a straight through muffler for an optimal flow, as well as premium aircraft quality stainless steel. These materials provide for an unrestricted airflow which unleashes more power along with that distinctive Borla sound. The stainless steel tubing is mandrel-bent meaning, it has no crimps and an ultra-smooth surface to maximize airflow. The muffler utilized by this system uses certain tone structure to create an aggressive tone when at wide open throttle, while being mellow at low speeds.
Give your B6 or B7 Audi A4 a proven performance increase that is backed with a million mile warranty, the Borla Cat-Back Exhaust.
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