Went with KW variant 3. Bilstein Pss 10 is equivalent but more so for track. It's probably best to save and invest. You will only have to change it once and you will never doubt yourself. kw v1 is like JCW pro coilover, went with variant 3 for the adjustability of comfort and potentially tracking in the future. My ride height now is low but not all the way. I still can adjust accordingly if needed. With coils you also may consider quality, some are harder to adjust after it's been installed.