[Zedn]

I used RX7 series 5. They are quite narrow so fit well and were only $50. The MX5 seats are similar but thinner on the upright.

You need to be very carefull with what seats you get though because its hard to find something that complies (see Baz's post).

The RX7 seats are a bit short but are slightly talller than MX5. I am working on a way to modify them without comprimising the performance or appearance. Also waiting to see if Baz's method is acceptable with the RTA.

There are a few clubbie manufacturers that have ADR approved seat frames that you then have to pad and cover.