gators196 Posted June 6, 2012 Report Share Posted June 6, 2012 I noticed the different tunes (91 octane, 93). What is this? I did not see that option when ordering. What is the difference? Any HP increase? Very happy to be 1 of 159! Thanks for posting. Link to comment Share on other sites More sharing options...
MMcGuirk Posted June 6, 2012 Report Share Posted June 6, 2012 There are two tunes available from Ford Racing. The choice is dependent on the octane availability in your market, There is no 93 in California, thus we get a 91 tune. No difference in power advertised. Link to comment Share on other sites More sharing options...
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