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  1. Make "DI-TIC" quieter

    2008-2013 Cadillac CTS General Discussion
    On my 2008 CTS 3.6, the "DI-TIC" is quite audible. Now I have researched what parts I need to get this quieter. Is there something missing in the following listing or do the selected parts fit at all? GM 12632150 GM 12639254 GM 11589290