AutoTecknic Front Aluminum Strut Brace - F30/ F31 3-Series | F32/ F36 4-SeriesProduct Description AutoTecknic strut brace is designed to add rigidity to the chassis of a car around the suspension pick up points. This can significantly improve the handling characteristics as the suspension geometry alters less under cornering forces which helps to minimize chassis flex during the hardest cornering. AutoTecknic strut braces provide benefits for both streets driven and track driven BMWs. This item fits the following vehicles: 2012