RacingLine Rear Body Brace AudiWant to sharpen up your Audi A3, S3, RS3, Octavia handling responses? Our beautiful billet and carbon Rear Body Brace reinforces the bodyshell at its weakest point for a more precise and pleasurable drive. WHAT DOES IT DO? Modern cars like the MQB platform run a pretty stiff laser welded bodyshell. Up front, the chassis is very rigid between the suspension tops, but at the rear there is much more chassis flex which negatively affects vehicle handling