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Diablosport Marathon Active Fuel Management Module (07-18 Sierra 1500)Find parts that fit my vehicle

Item S510508
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AmericanTrucks no longer carries the Diablosport Marathon Active Fuel Management Module (07-18 Sierra 1500). Please check out 1999-2006 GMC Sierra 1500 Tuners & Throttle Enhancement for an updated selection.
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Review & Install - Diablosport Marathon Active Fuel Management Module Video   See All Product Videos (1)
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3 Reviews

    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation

    Features

    • Increases Fuel Economy
    • Keeps Vehicle in 4-cylinder Mode Longer
    • Plugs Directly into the OBDII Port
    • Not Carb Certified at this Time
    • Fits 2007-2018 GMC Sierra 1500 Models with Active Fuel Management (AFM)

    Description

    Increase Fuel Economy. DiabloSport designed their Marathon Active Fuel Management Module to increase the gas mileage of your GMC Sierra. This neat little device enables your active fuel management (AFM) equipped Sierra to stay in 4-cylinder mode 80 percent of the time, as opposed to only 35 percent of the time as set by the factory. So, now your V8 will behave more like a 4-cylinder engine when cruising, but will still allow for full V8 power when you need it.

    Not CARB Certified. The Diablosport Marathon Active Fuel Management Module is not currently CARB certified, therefore it is not legal for use in California or any other state adopting California emission standards. Not intended for use on pollution controlled motor vehicles.

    Application. This Diablosport Marathon Active Fuel Management Module is designed to fit 2007-2018 GMC Sierra 1500 models that are equipped with the Active Fuel Management System (AFM).

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    Installation & What's in the Box

    Installation Info

    Installation Time

    (approx) 5 Minutes

    Difficulty Level:

    Simple installation for anyone.

    Installation Guides

      No guide available for this part yet.

    What's in the Box

    • (1) Marathon Active Fuel Management Module
    3.0

    Customer Reviews (3)

    Brand Image

    Reviews of Diablosport Tuner products have an average rating of 4.7 out of 5

    Questions & Answers

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