Ford Focus Forum, Ford Focus ST Forum - View Single Post - Do I have to update ECU, in case of changing a wheel size ?
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Old 09-15-2012, 03:20 AM   #3
TheGlassMaker's Avatar
Join Date: Oct 2009
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Location: De Graff, OH
What I Drive: 97 Impreza coupe, 04 Mazda6

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I go from 15" in the winter to "18 in the summer it only about 2-3 mph difference. If i'm going 68 i'm actually going about 65. It's a little peace of mind when I'm speeding. lol
Do one thing every day that scares you. -Eleanor Roosevelt
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