Vorsteiner is a California-based tuner for BMW, Mercedes and Porsche. It’s love for German brands is shown in the available packages. They have introduced a new lightweight body kit for the BMW E90 M3 Sedan featuring a lightweight dry carbon fiber boot lid and aero dry carbon fiber rear diffuser with integrated fins.
The package should ensure more down force and weighs 35 procent less than the standard unit. Vorsteiner has more extras available for this car like a front add-on carbon spoiler and VRS vented race hood.