If you just unbolt the actual seat from rails, you can put almost any seat that will physically fit, just bolt or weld the seat to the trackick slider rails. I've wanted to put in a set of early(90/91) Civic Si seats, or Integra GSR seats in mine, I had a civic si before, and they were quite comfy, lots of side support. I just haven't found a set in okay shape for a worthy price.