Thats correct I ordered two towing tunes one higher octane than the other. Towing is the main reason for getting the Gryphon and I was worried that the 87 octane tow would not improve my towing as much as I would like. I am seriously thinking of changing the 91 custom tow tune to an 87 custom performance.
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Jeff
2008 F150 4.6L 2V 4X4
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