Yeah supposedly HAs (springs) are slightly stiffer and also have helper springs.

I've got HAs for an EK sitting in my room. I bought them for EG and just had to shave down the lca bushing in the rear a bit to make them fit. They do not make them anymore for civics, but I picked them up for $940 shipped. I just took them off since I wasn't happy with the ride quality, but now I"m having second thoughts about selling them. A local guy is picking them up from me on firday for 900, hehe.