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Old 02-19-2013, 08:15 AM   #5
Focus Enthusiast
Join Date: Sep 2011
Fan#: 89747
Location: Katy, TX
What I Drive: 2014 Sterling Grey Focus SE Sedan

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I have 28K miles and the only engine tune issue I have is at idle the engine stumbles and then smooths out... It started this only after I installed the header.
It is what it is in life... Just have fun with it!

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