STI BILSTEIN DAMPER KIT COILOVER?
 

Has anyone ever bought this, or know what they are exactly?

https://www.sti.jp/en/parts/subarubr.../ST20330AS010/
https://www.rhdjapan.com/sti-bilstei...r-set-zc6.html

Are they real coilovers or just a damping kit with springs?

Depends on what you mean by "real coilovers". Technically the car already has coilovers on it. But what most people think of when they say "coilovers" is height-adjustment and damping adjustment. This looks like Bilstein B8 dampers w/ the pink STI springs, which means there will be no height adjustment or damping adjustment available.

Unless you just really want the STI springs you could probably get the Bilstein B12 Pro-Kit which is basically same thing, B8 dampers + Eibach Pro-Kit springs. In both cases Bilstein partnered with another company (STI and Eibach respectively) to ship the damper with proper valving with their springs, but of course no adjustments in any case.

Thank you very much for clearing that up for me!