I don't know of any one-piece mats, particularly in carpet. My best guess would be to run a 3-piece mat like mine and potentially epoxy carpet over them?
In my 88 I'm running a 3-piece Husky liner, two sides and the center hump.
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Similar idea, In my 02 I have weathertechs with a husky center liner, because weathertech doesn't make a center liner for it.
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