Looking at your photos, your body kit is either WingsWest fiberglass or a TRD
/WingsWest knock off, since it looks like it has separated from the car body. Its rubber molding also doesnt look like the type which Toyota uses (comes pre-installed to each part) on those side skirt pieces. Genuine Wings West and Kaminari poly urethane pieces also have their 3M double-sided tape molding pre-installed to their parts.
Your rear sway bar install looks like it was purchased separately and installed by a third-party, due to the poorly cut / unfinished trunk-tray plastics from its installation.
The rest of the modifications (JDM fuel door. Wheels. Carbon fiber trunk hatch. Loose sub woofer, Multiple AMPs) also point towards your Celica just being a standard GTS manual, with parts (some being TRD
USA and some being TMS or Toyota JDM) added by a previous owner.
I dont mean to sound harsh, so sorry if what I wrote comes off that way. It looks like you just got a standard Celica GTS with some aftermarket customization to it. It doesnt look like the style of a "TRD
Edition Celica" at all. If that's how the vehicle was advertised to you, you got taken. BUT if you are happy with your purchase, and are loving your Celica; then that's what counts and you've made a good purchase. Congratulations with your new Celica