You can only get the Authentic TRD body kit from a Toyota Dealership , otherwise you are just buying replicas.
I recommend a authentic but if price is an issue and you don't care about a great quality then the TRD body kit is also called by these names.
TRD
Action Package
Mechanical
WingsWest (for sides skirts and rear, I recommend this, same as TRD only a lot cheaper and very high quality)
https://celicahobby.com/catalog/product_info.php?cPath=34&products_id=80https://celicahobby.com/catalog/product_info.php?cPath=34&products_id=81I don't know where to get it from but you only really need to find the front bumper.