You probably are going to want more bolster support than Factory can provide but if you want to look in the meantime, check out the bottom cushion. On mine, the seats were starting to break down and I was getting a lean to the door. It was affecting my back some and I was looking for replacements. I found some low mileage stock seats (I also think the factory seats are pretty comfortable) and swapped the covers. When I disassembled the seats to clean them, I noticed that my seats had a giant tear in the foam, right where the seat frame went under it. The low mileage seats were starting to tear in the exact same spot. I assume its from sliding across that area, while getting in an out.
Once I noticed that, I reinforced the area with some fabric I got from a local mattress manufacturer. I told em what I was doing, and he sold me a yard of reinforcing material they use on box springs for like two bucks. I used some spray adhesive (like 3M 90) and so far, it seems to be holding up. I also steamed the foam to restore a bit of its resiliency. I honestly think the seats in my wrangler are more comfortable than the ones that were in my 14 F150 or my 17 Colorado.
BUT...I can see where they are lacking in bolster. You might look into adding some bolster foam and fabric as well...Its not hard, at all, esp for someone with your skill. Once you get some basics down, sewing is a piece of cake.
I’m amazed how quickly stuff rusts there.
