It depends which year they are as there are three different styles. The early levin/trueno are one piece and are longer these do not fit the contour of the usdm gts sheet metal. They will bolt in but you'll have to fill a large gap between the lights and body. The later versions will bolt-on and seal normal. Only problem is that these have a slightly different shape around the plate tub so you'll either have to find the proper plate tub or live with a slight gap between. The last versions look very similar, but look nicer to me, they work the same as the second style so plate tub or gap.
One more note on the levins, mayby truenos, the last two styles some used the actual sheet metal for the plate tub instead of the plastic portions in between the lights. You'll need the rear metal for cut and paste or fab up something on your own. The cars that used this set-up had the plate lights on the bumper.
early tails one piece
2nd gen tails shown with usdm plate tub, reverse lights in middle. Might be factory rear fogs above them?
third gen tails also known as "redlines" reverse lights on the inside, again with usdm plate tub.
Hard to tell but third gen tails with proper plate tub
third gen with metal plate tub, lights on bumper
north american tails but I have seen pictures of these in other countries as well hard to keep track of all the little changes.