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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    21I Factory-verified

    Chevrolet · Regular Production Option

    Interior trim, Blue

    Years 1989 Models 1 Factory citations 1
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    Documented applications

    Corvette — C4 (1984–1996)
    • 1989 Factory-verified

      the 1989 order guide (pp.31, 33) calls the interior Blue; the service list calls it Medium Blue and prints 211

      GM Heritage factory kit — 1989 Chevrolet Corvette, p.22.

    This page aggregates every documented appearance of 21I in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.