I called Heidts and asked them about a rear sway for their IRS on my 32. The dude took offense to me asking this question. He asked what I was going to do with the car and I told him I just wanted it to handle as good as it possibly could. His response was that with their dropped open wheel IFS and their IRS that my car was too light and had too low a roll center to bother with a sway bar.

And oh BTW they don't make one for their IRS rear

One of these days I'll get her going and let you know .........

Kitz