My AST's normally come as true type coilovers for the rear. When I ordered them I simply explained what I wanted the spring rate, free length, and ID of the rear springs to be and they supplied the shock and spring separate. I'm guessing that maybe Stance could do the same thing albeit maybe for a small up charge.
Also, you might want to consider some stiffer springs as 12k and 10k are a on the soft side for running ASP with big wide sticky Hoosiers.
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'11 370Z Nismo #528 Fast Intentions | Stillen | Motordyne | Uprev | CSF | Zspeed | Z1 Motorsports | AST | Swift | SPC | SPL | Whiteline | Hotchkis | Bride | Schroth | Robispec | Cusco | Nismo | Volk | Forgestar | Hoosier | RJM
'17 Titan Bone Stock
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