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step colder spark plugs
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  1. Focus ST Maintenance
    '13 Focus ST - 80,000 miles. Never replaced the spark plugs. Got a Stratified 93 tune 2 years ago (no bolt ons). Purchased NGK one step colder plugs. Installed them this afternoon. I gapped them to the recommended .026 by Stratified. I torqued them by hand and feel, not with a torque wrench. I...
  2. Focus ST Photo/Videos
    Ordered a few parts that I will be installing Saturday. Got the Mishimoto intercooler in gold, Cobb accessport with Stratified tune, and some step colder spark plugs. More pics to come during/after install!
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