... but it does look deceiving because the front is stock with some tiny little tires on it, so it makes the back look even worse.

To get the PVC inserts inside hummer tires, I had to soap everything up and set the tire on the insert (sideways) and then jump repeatedly on the tire as hard as I could to get the insert into the tire. Then it was on to prybars and long pipes to rotate the insert until it was between the two beads. It can be done, like they say, but they don't tell you what a huge pain it is.
I bet it's a lot easier to cut the pvc, it only took me about 5 min to do, this is what I copiedThat is the reason I am seriously thinking about getting the Mag inserts and cutting them down. Two piece already.