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  1. Focus ST Maintenance
    Has anyone tried Bosch ignition coil packs in their ST? They're significantly less expensive than the Motorcraft...and Bosch usually makes decent parts...
  2. Focus ST Maintenance
    I took an hour and a half drive on a freeway and noticed I racked up 257 misfires, which were consistently spread out throughout the drive. What’s going on? Does this matter? And how can I fix this?
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