Whether you're trying to get to work on time, or want to get out of town to enjoy a nice three-day weekend, you need to be running a performance grade Audi A3 catalytic converter. Stock Audi A3 catalytic converters just don't cut it anymore. Sure, they do a fine job scrubbing your exhaust emissions, but they are power killers. The Audi A3 catalytic converters featured at AutoAnything not only meet emission standards, they give you back that lost horsepower and torque. Install a new Audi A3 catalytic converter on Sunday and put the pedal to the metal on Monday.