The seat provided is way to big for me. I decided to try a custom foam kit from Pegasus Racing . This is my first try at a custom insert..came out fairly well..just need to cover with Nomex for a finished look. A lot different than what I had envisioned. The kit has a bag of small beads, of what I am guessing is Styrofoam. You add a two part resin and mix well. Then put it on the floor and lay down and try to distribute the beads evenly. Once this is done, you apply vacuum to hold it all in place..set the bag in the seat..hop in and play with your phone for 35 minutes. It was still fairly soft after the allotted time. I let it set overnight and it was a solid unit in the morning. One issue is that the insert raised my seating position just enough to cause interference with the steering wheel..my solution was to buy a smaller flat bottom Momo wheel..no more problem.
