As you can see from the final product on the right, the bolsters are now firmer and sit taller. Seating is much improved.
On the left you see the pieces that were replaced. I know some people have rigged their own solutions but it really was not cost prohibitive to use the correct parts. Also my car is a 2002. The updated support mesh is black compared to the original orange. Also the seat foam was white with black top coating compared to the original yellow and white.