Brisk spark plugs for Focus ST gains 8whp/tq! | The Focus ST Network Forum

Brisk spark plugs for Focus ST gains 8whp/tq!

Discussion in 'CFM Performance' started by [email protected], Dec 11, 2013.

  1. william@cfm

    [email protected] New Member

    Last edited: Jan 27, 2014
    jakebrewer likes this.

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