Community Q&A Question: Air Intake Octane Rating

Asking About: Mustang Ford Racing Cold Air Intake Kit with Calibration (05-09) 4.0L


0

Air Intake Octane Rating

Why does this one particular Air Intake require Premium (91 octane or higher) fuel ? Compared to the Air Intakes for the V6 why does this one need it? And if purchased could you use a different octane rating lower than 91?
from Lacombe |

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The tune calibration needed for this intake is calibrated for 91 octane fuel. You can go higher, but lower octane will reduce engine timing to avoid pinging.
from Hewitt |
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Question About

  • Mustang Ford Racing Cold Air Intake Kit with Calibration (05-09) 4.0L
    Ford Racing Cold Air Intake Kit with Calibration (05-09) V6 4.0L
    #M9603V605
    $549.99
    This item is no longer available.