MILLTEK SSXAU782 Cat-back 104x80mm Black Velvet Oval AUDI S3 2.0 TFSI quattro Sportback 8V.2Description MILLTEK SSXAU782 Cat back 104x80mm Black Velvet Oval AUDI S3 2. 0 TFSI quattro Sportback 8V. 2 From 2017, many vehicles have been equipped with a Particulate Filter to further reduce emissions. The Milltek Sport Particulate Filter Back range is designed to compensate for the sound reducing qualities of the particulate filter and significantly improve the exhaust system's sound aesthetic. Milltek Sport performance exhaust systems are