engine code
It is my understanding if you have a W your engine was built in Romeo and if you have an X it was built in Winsdsor. Check out this site
http://www.allfordmustangs.com/techarticles/v4.shtml
http://www.allfordmustangs.com/techarticles/v4.shtml
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Boostaddict
Lethal Performance
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2005-2014 Mustangs
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