here is the trd fr-s fuel cover.
http://www.ebay.com/itm/SCION-FR-S-T...a24dc9&vxp=mtr
but does anybody thing it is possible to get this and replace the small trd emblem with a sti embelm? such as this one? Or you can look for sti lip emblem on ebay and there are several other different small emblem sizes
http://www.ebay.com/itm/Impreza-STi-...7de136&vxp=mtr