Reason #1: To promote Drake Plastics Ltd Co products. I manage the engineering team here as my day job. Racers will likely never be big customers, but this provides a great marketing/case study that is tangible on how specialty polymers solve problems in industry. Specialty polymers typically aren't used in performance aftermarket or racing applications but they don't have to be so far out of reach for club racers like us.
Reason #2: I didn't like what was out there and I am a design engineer blessed with resources to build something better.
These are production, I ran out of stock 2 weeks ago however. New stock in 2 weeks from now due to Torlon's 4-week cure cycle. I only offer them pressed into new control arms and finish reamed. The hole is offset more than other options out there and the material has moly, graphite, and PTFE as dry lubricants + carbon fiber for compressive strength. The inner sleeve has a flange to spread the load on the subframe.