034 Motorsport Adjustable Rear Anti Roll Bar Kit for Audi A3 S3 8P Mk2 Quattro
2006 - 2013 Audi A3/S3 Quattro (8P). 2011 - 2013 Audi RS3 2.5 TFSI (8P). No upgrade in the front is needed or required. The addition of a stiffer front bar introduces even more push, requiring an even bigger bar in the back.