Are you asking because you have no experience with aftermarket kits, or you have no experience with Kaminari, or you just want to hear from someone else that it went on OK and you won't have to do a lot of work to make it fit like OEM?
IME, there are NO aftermarket body panels that fit like OEM. Some are close, but the Kaminari work I have seen requires significant effort to make it look show quality. If less than show quality is your goal, it will probably fit acceptably and you can move things around until you get a good compromise, but if you want the deluxe look, you have no choice but to do some work to make things fit. No I have not put a Kaminari kit on a tC, but I have both installed and seen the installed results of a number of manufacturers on Supras. None were perfect out of the box.