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  1. Preferred Spark and Coils

    Chevy Impala 8th Gen Discussion
    2012 LTX flex here,, anyone have a preferred brand of spark plugs and coils? RA looks like they have every kind made, but whats the right one? Plugs Gm says: @$7.86 ea Part Number: 12681660 Replaces: 12622561 RA says: @$5.73 ea...