Ok, I just wasn't sure what the 7th gens had, I don't recall the TSX having them.
Does the stance first look ok? And I guess how stiff is stiff?
My Eibach's got better at high speed floatiness (if you can say that) with the install of Koni's. But mine never were stiff they always felt good.
I don't think the alignment would effect the stiffness.