Focus Fanatics - View Single Post - 2013+ Focus ST FRPP Tune info
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Old 09-20-2013, 08:09 PM   #6
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Join Date: Mar 2011
Fan#: 84300
Location: Canton, MI
What I Drive: 2011 Ford Focus SES

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You have to remember at peak hp there is more things to consider such as exhaust temps/cat temps, cylinder pressure, turbo speed, and etc. You can only do so much at peak power with live cats and stock exhaust.
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