Its just what QA1 calls their adjustable strut rods.
The only thing I can think with QA1 calling them “dynamic” is that they use a double threaded stud at the LCA end. Which makes them easier to adjust than the other kind that just use a bolt to go through the LCA into the threaded strut rod tube. So maybe that’s what they mean, since the QA1 version is truly double adjustable on the car.
With the other kind you can adjust the length of the tube, but then you need to tighten the bolt at the LCA end still, which can change the length again. Makes finding the proper length (for no binding on the LCA) a little trickier. I’ve used both styles but prefer the QA1’s.
