off the shelf struts are not valved for 8/6 springs (or anything near that high)
any drop in shock must be revalved if you want it to handle properly.
after buying all the components, and revalving the shocks, it will probably be cheaper and easier to just have bought a complete coilover setup.
another advantage to coilovers is you get height adjustment on the shock body, instead of just the coilover sleeve. as you lower a car with the sleeve, you lose shock travel (no bueno).
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