This is the largest OEM rear swaybar available for the MK7 platform, coming in a 21.7mm. This bar is an upgrade for all Golf and GTI without the performance pack. Increasing the diameter of your rear swaybar will dramatically decrease roll while also helping your car to rotate at the same time improving driving feel and sharpening steering. Since this bar is OEM, the fit and finish is perfect and it is a direct bolt replacement for your existing bar. Installation takes less than 20 minutes with simple tools in your driveway.