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Vortech Supercharger with "Z" VIN 8th digit?

Discussion in 'Performance & Fuel' started by Ceej, Sep 13, 2010.

  1. Ceej

    Ceej New Member

    What is the deal with the "alternative" fuel Silverado and Vortech Superchargers?

    Is this an ECM limitation, or can the system be used as long as only premium pump gas is used?

    CJ

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