you can use a g20 armrest, just screws on, hard finding the thick ones like the one i have, but mine is the factory nissan one like said abouve, the leater is 96 g20 taken off the g20 power seat frames, and bolted onto the 200sx seat frames, all that holds the 200sx seats togther are 4 bolts for the rear, 4 for the bottom, then you just have to be careful taking everything apart and putting back together, and not everything on the g20 bottom bucket goes back together bolt wise, only 2 bolts on back on 1 side, and front on other side, but you dont notice anything. The backs are a pain, if your eally want you can keep the folding function, but i dont care about that, i keep the part the seats lock into, but knock out the bottom parts that are tac welded, but otherwise backs slide right in. I actually have a extra g20 rear seat, and front driver seat, just missing a passenger seat lol.