The only coilovers I know of that you can pickup for less than $1k are Megan's... don't know anything abut them... I know one person over at SM installed a set but I don't recall reading their thaughts after having them for a while. You can get a set of Tein Super Street's for a little over $1K (maybe less if you find a sale)... they're decent as far as spring rates and adjustability, but I've seen mixed reviews as far as their durability is concerned.
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