BS1 Factory-verified

Chevrolet · Regular Production Option

Insulation, acoustical package

Years 1970–80, 1982–88, 2000–09, 2014–16 Models 18 Factory citations 69
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Also described as Body insulationQuiet Sound Group (acoustic insulation)Quiet sound groupInsulation package, acousticalAcoustical insulation package (quiet sound group)Package, acoustical insulation and luggage compartment decorAcoustic package, enhancedAcoustical insulation packagePackage, acoustical insulation

Also documented for BuickCadillacGMCOldsmobilePontiacSaturn

Documented applications

  • 1982–1986 Factory-verified
    GM Heritage factory kit — 1982 Chevrolet Camaro, p.30.
    GM Heritage factory kit — 1983 Chevrolet Camaro, p.26.
    GM Heritage factory kit — 1984 Chevrolet Camaro, p.7.
    GM Heritage factory kit — 1985 Chevrolet Camaro, p.22.
    GM Heritage factory kit — 1986 Chevrolet Camaro, p.22.
  • 1986–1988 Factory-verified

    standard on the Caprice Classic and Brougham; the 1988 sheet prints BSI

    GM Heritage factory kit — 1986 Chevrolet Caprice, p.38.
    GM Heritage factory kit — 1987 Chevrolet Caprice, p.41.
    GM Heritage factory kit — 1988 Chevrolet Caprice, p.65.
  • 1984 Factory-verified

    only in: hatchback coupe, hatchback sedan; the 1985 page prints the code as 8S1, which is not an accepted reading, so 1985 is left out

    GM Heritage factory kit — 1984 Chevrolet Citation, p.32.

This page aggregates every documented appearance of BS1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.