I just thought I would share my experience with the PowerFlex Hybrid since there hasn't been a recent post about it. I installed the bushing on my car about a month ago. It replaced the 034 lower insert I had before. Like everyone else, my 034 lower insert was bent and not doing anything. Removal of the OEM lower puck wasn't too hard. I cut the rubber out using a knife and used a Dremel to cut the plastic ring. I lubed up the Powerflex and was able to shove it in all the way by hand. Tourqued everything down to spec and went for a test drive. The first thing I noticed was how crazy the vibrations were in reverse. When the car was idling I could feel vibrations with or without the AC on. Once the car was going, the vibrations were like stock. Wheel hop was completely eliminated from what I could tell. I drove the car like this for a month but decided to try the Roc-Euro pendulum arm as it was recommended by a few users on the forums. I went to install the Roc-Euro arm and noticed that the black metal insert on the Powerflex Hybrid would not fully insert into the bushing. Therefore if I were to torque the bolt down with the washer. The washer was not tight and could freely spin. I emailed Roc-Euro and he mentioned the Roc-Euro arm is slightly thicker than it used to be. Determined to make this work, I found a washer on Amazon that had similar dimensions to the Powerflex washer. I stacked the washers and I was able to torque everything down to spec. After driving around for one day, the vibrations increased significantly. I took off the Roc-Euro and reinstalled the stock arm that same day.
I happened to find a video from Last Human Garage. He was using the red Desiel version of the Powerflex insert (Not the hybrid). He modified the bushing so that it was no longer going into the stock upper puck. In his video, he mentioned that the NVH decreased significantly. I decided to pull out my Powerflex Hybrid and cut off all the parts that insert into the upper puck using a box cutter. I Installed the bushing and turqued everything down. Noticed right away that all the idle NVH and reverse NVH was gone. The car felt like stock. When I launched the car I noticed no wheel hop. So far I'm really happy with the outcome of this modification.
My car is a 2016 GTI DSG with BFI Stage 1 engine mount and trans insert. I also have the 034 subframe locking kit installed as well.