do you mean the screws? if not, what else do you mean by hardware?
it it's screws and if your holes are already drilled from your last spoiler (and if your replica spoiler fits the stock holes) then i'd take a trip to the home depot or other hardware store (spoiler in hand) and look for the correct size screws (also be sure to measure the length of the screws you'll need to install them through your hatch)
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