I thought the GTI ones has 1 screw at the bottom and the whole thing slides off. With this, i'll need to put in an extra screw on the bottom right?
Seems to be the gloss black version of the OEM GTI style.
The skirts are actually a little different, they do not curve like the GTI ones do, they are pretty much just straight at a 45º angle like in the pic you posted. It's subtle but noticeable when placed side by side.
The skirts slide on just like the OEM GTI ones with the screw in the middle/bottom. There is also a screw (#6 in the picture below) in the rear that holds the rear flap thing on but that just involves removing a screw that holds the flap on and sandwiching the skirt in and putting the screw back.
The FL R/Clubsport skirts have provisions for 2 extra clips/screw things underneath; but like I mentioned they aren't totally necessary unless you want full OEM.
To do this you would buy 2 of
these clips which go underneath the car after removing some body plugs.
Here's a pic of the clips on a face lift R, they are the 2 white clips on either side. Ignore the skirts in the pic, the owner replaced their FL skirts with pre-FL skirts.
I thought about doing the red Reiger skirt exetensions but I'm probably going to stick with a little more mild/OEM+ for now.
Currently working on trying to retro fit the gloss black from bumper spoilers from the facelift Golf R onto the GTI bumper just to match the skirts. That unfortunately will not be plug-and-play.