Both driver and passenger. Pay amost $600 for parts+international shipping+local shipping. Will sale for $400+shipping. I am in S.California area.
see: http://www.scienceofspeed.com/products/interior_performance_products/NSX/TAITEC/sliding_seat_rails/bottom/
see: http://www.scienceofspeed.com/products/interior_performance_products/NSX/TAITEC/sliding_seat_rails/bottom/