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Marathon Active Fuel Management Module - M1000X

Suggested retail: $265.00
Your Price: $249.95
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    Orders placed by 2 PM MT, with the exception of weekends and holidays, will ship the same business day

    The DiabloSport Marathon Module helps you get better fuel mileage by enabling your V8 engine to behave like a four-cylinder engine when cruising, while still allowing for full V8 power when you need it.

    Easy installation. Just plug into the OBDII port under the dash and drive.
    Compatible with GM vehicles built from 2005 to current that feature Active Fuel Management (AFM).
    Enables vehicles with AFM to drop cylinders in order to suit the driver\'s power requirements, while conserving fuel.
    Saves fuel by allowing vehicle to stay in 4-cylinder mode 80% of the time as opposed to only 35% from the factory.

    Pending 50 state legal emissions.

    Not available for sale or use on pollution controlled vehicles in the state of California.

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    Questions about buying this product? Our experts are available from 8 AM – 5 PM MT. Call today at 866.404.6141. Our sales team would be happy to answer any questions you have.

    This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status

    Marathon Active Fuel Management Module is rated 3.3 out of 5 by 3.
    Rated 2 out of 5 by from Not sure ... I've had this on my Tahoe for almost a month and I haven't noticed any difference in my fuel efficiency. Sadly, I'm not even sure it's working other than there is a green light on. Would be nice to know what all four lights mean and if there is a problem, how to fix it. Installation instructions were easy, but lacking in any troubleshooting details. I'll update this post when I get more data. And wasn't happy to have to pay an extra $100 in customs fees to get it across the border ...
    Date published: 2021-08-17
    Rated 4 out of 5 by from It mostly does what intended. This works well for flat roads with no wind. If you use it on rolling hills or steep hills the gas mileage remains about the same as without the chip, and if you add wind, even to flat roads, you definitely lose your advantage, but for the flat stretch that we typically drive we are seeing an improvement of about 5 MPG on average.
    Date published: 2019-01-13
    Rated 4 out of 5 by from Slight improvement in mpg I see a slight improvement in average mpg. I know some of their other products can be updated. If this can I suggest making it go to V4 mode at idle and up to 1,200-1,300 RPM. Since there’s no hesitation in going to V8 mode when you STEP on it I don’t think a update like this would be a problem.
    Date published: 2018-11-28
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    Is this only for V8 engines? I have a 2007 Jeep Wrangler which naturally is a 6 cylinder. 

    Asked by: arcangel694u
    This product wouldn't apply to the Jeep wrangler as it is designed around GM vehicles.
    Answered by: Marketing MB
    Date published: 2020-05-27

    Will it keep my truck in v8 and not let it Switch in and out from V8 to v4 

    Asked by: Killa
    You will want the S1000 Sprint module to keep your vehicle in the V8 mode. This product actually keeps you in the V4 mode more frequently.
    Answered by: Marketing MB
    Date published: 2020-05-04

    Does this keep engine running on all 8 cylinders. Doing a DOD delete and it to run on all 8 cylinders all the time. This is a 2005 Chevy Trailblazer with a 5.3L

    Asked by: Anonymous
    This does the opposite of what you are looking for. You would want to look at the S1000 Sprint Module as that will keep the vehicle in 8 cylinder mode all the time. However, if you are doing a full DOD delete system with internal work, then I would recommend a custom tune to permanently turn off those features. I would check with the guys at about those details.
    Answered by: Marketing MB
    Date published: 2020-05-04

    Will it void my factory warranty on my 2018 Sierra SLT

    Asked by: Dvmashe
    This product should have absolutely no effect on your warranty on your vehicle. As a plus, you can unplug it from the OBD2 port before service and that will completely prevent any trace of the device to be present.
    Answered by: Marketing MB
    Date published: 2018-12-07

    Will this increase the issue of oil consumption? Also will this interfere with the onstar features like remote start and lock/unlock?

    Asked by: Carlos
    Oil consumption is caused when it switches back and forth between 4 and 8 cylinder. Disable 4 cylinder mode to reduce oil consumption
    Answered by: Chevydude
    Date published: 2018-10-16

    can intune 13 do this also

    Asked by: gangstabilly
    Yes, the I-3 can turn off the AFM/DoD system on any vehicle it supports.
    Answered by: Mike M
    Date published: 2018-09-11

    I want to put a catback exhaust on my 2019 Camaro ss 6.2l, but I can't find any exhaust with a place to install AFM modules...if I use the diablo can I remove or disable the module?

    Asked by: BUBBA

    Will this work with a 2018 v6 silverado?

    Asked by: Polonez
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