I too recently installed the Hellwig and it definitely made a nice improvement on mine. It took a lot of the body roll out of it especially on some of the long curve on/off ramps on the interstate. I started on the middle hole but moved it too the stiffer hole for a bit more anti sway. Very easy...
They did a very good job on my case as my turbo actuator failed at 140 miles. The part was expedited and was fixed in less than a week . I also received compensation in the form of an extended powertrain warranty.
I like the bumper a lot and the license plate mount comes with the DV8 competition rear bumper. I have one for sale as I went with the Havoc spare tire license plate mount instead. There is 10% off for Active Military and Veterans also.
Damn Black Friday deals had me busy all weekend. HavocOffroad license plate relocation kit, DV8 Competition rear bumper and MBRP exhaust. Still waiting on Diode Dynamics rear bumper lights.