AFM/DFM Disabler

AFM/DFM Disabler

 4.9 (2.3k reviews)
$89.00
$89.00 $178.00
SAVE 50% Sold out

Help reduce the risk of costly AFM lifter repairs, enjoy smoother V8 performance, and support long-term engine reliability.

check_circle Installs under your dash in just 10 seconds.

check_circle smoother driving by reducing V4-to-V8 transition shudder.

check_circle Fully reversible—just unplug.

check_circle 30-Day Money-Back Guarantee

AFM/DFM Disabler

AFM/DFM Disabler

$89.00
$89.00 $178.00
SAVE 50% Sold out

“Plugged it in two years ago—my Silverado is still running strong at 241K miles.”

jack B.

How It Works

The FullPower Drive AFM/DFM Disabler plugs directly into your vehicle’s OBD-II port and keeps AFM/DFM cylinder-deactivation mode disabled while the device is connected.

Easy Installation

No tools or mechanical work required. Locate the OBD-II port under the dashboard, plug in the device, and wait for the blue LEDs to illuminate. Installation takes only seconds.

What’s Included

1 × AFM/DFM Disabler

1 × Quick-start installation guide

30-Day Money-Back Guarantee

Try FullPower Drive for 30 days. If you’re not satisfied with your purchase, contact us within 30 days of delivery to request a refund according to our return policy.

Shipping & Delivery

Orders are processed within 1–2 business days. Tracking details are sent as soon as your package ships.

View full details

Check If It Fits Your Vehicle

Chevrolet

Avalanche 5.3L V8 2007–2013

Avalanche 6.0L V 82007–2009

Camaro 3.6L V6 2016–2024

Camaro 6.2L V8 2010–2024

Caprice PPV 6.0L V8 2011–2017

Colorado 3.6L V6 2015–2020

Corvette 6.2L V8 2012–2019

Equinox Sport 3.6L V6 2008–2009

Express 1500 5.3L V8 2014

Impala 3.9L V6 2007–2009I

mpala 5.3L V8 2006–2009

Malibu 3.6L V6 2008–2012

Malibu 3.9L V6 2006–2007

Monte Carlo 5.3L V8 2006–2007

Silverado 1500 4.3L V6 2007–2021

Silverado 1500 5.3L V8 2007–2022

Silverado 1500 6.0L V8 2007–2013

Silverado 1500 6.2L V8 2009–2022

Silverado 1500 LD 5.3L V8 2019

SS 6.2L V8 2014–2017

Suburban 5.3L V8 2014–2020

Suburban 6.0L V8 2016–2018

Suburban 6.2L V8 2019–2020

Suburban 1500 5.3L V8 2007–2014

Suburban 1500 6.0L V8 2007–2013

Suburban 2500 6.0L V8 2007–2013

Tahoe 5.3L V8 2007–2020

Tahoe 6.2L V8 2018–2020

Trailblazer 5.3L V8 2006–2008

Uplander 3.9L V6 2006–2009

GMC

Acadia 3.6L V6 2007–2008

Canyon 3.6L V6 2015–2020

Envoy 5.3L V8 2005–2009

Sierra 1500 4.3L V6 2007–2018

Sierra 1500 5.3L V8 2007–2022

Sierra 1500 6.0L V8 2007–2013

Sierra 1500 6.2L V8 2007–2022

Sierra Denali 6.2L V8 2009–2018

Yukon 5.3L V8 2007–2020

Yukon 6.2L V8 2010–2020

Yukon XL 1500 6.2L V8 2014

Yukon XL 5.3L V8 2015–2020

Cadillac

ATS 3.6L V6 2013–2019

CT6 3.6L V6 2016–2018

CT6 non Hybrid 3.0L V6 2016–2018

CTS 3.6L V6 2004–2019

CTS 6.0L V8 2006–2007

CTS 6.2L V8 2009–2019

Escalade ESV 6.0L V8 2010–2020

Escalade ESV 6.2L V8 2010–2020

Escalade ESV 6.2L V8 2010–2013

SRX 3.6L V6 2004–2009

STS 3.6L V6 2005–2007

XT5 3.6L V6 2017–2019

XTS 3.6L V6 2013–2019

Buick

Enclave 3.6L V6 2008–2020

Envision 2.5L L4 2017–2018

LaCrosse 3.6L V6 2005–2019

LaCrosse 5.3L V8 2008–2009

Rainier 5.3L V8 2005–2007

Rendezvous 3.5L V6 2006–2007

Terraza 3.9L V6 2006–2007

Pontiac

G6 3.6L V6 2008–2009

G6 3.9L V6 2007

G8 3.6L V6 2008–2009

G8 6.0L V8 2008–2009

G8 6.2L V8 2009

Grand Prix 3.8L V6 2007

Grand Prix 5.3L V8 2005–2008

Montana 3.9L V6 2006–2009

Torrent 3.6L V6 2008–2009

Holden

VZ Calais SV6 3.6L V6 2006–2018

Commodore Wagon 3.6L V6 2006–2018

VZ Commodore Sedan 3.6L V6 2006–2018

Crewman UTE 3.6L V6 2006–2018

9C1 Police Special 6.0L V8 2015–2018

Rodeo 3.6L V6 2006–2011

Colorado 3.6L V6 2006–2009

VE Commodore Omega 3.6L V6 2006–2009

WL Statesman 3.6L V6 2006–2017

WM Statesman Caprice 3.6L V6 2006–2017

Saab, Saturn, Isuzu & Suzuki

Saab Outlook XE 3.6L V6 2007–2008

Saab Relay 3.9L V6 2006–2008

Saab 9-7X 5.3L V8 2005–2009

Saturn Aura XR 3.6L V6 2007–2009

Saturn VUE XR Red Line 3.9L V6 2008–2009

Isuzu Aura XR 3.6L V6 2007–2009

Isuzu Ascender 5.3L V8 2005–2009

Suzuki XL2 3.6L V6 2007–2009

Drive Your V8 the Way It Should Feel

AFM constantly switches your engine between cylinder modes, which can create hesitation, shudder, and uneven power delivery—especially during hills, acceleration, and stop-and-go driving.

With AFM disabled, your engine stays in full-cylinder mode for a smoother, more consistent driving feel.

✓ Help protect your truck for less than the cost of a tank of gas.

  Doing Nothing
Protects engine
Smoother driving
Less oil burn

installs in seconds

Many AFM fixes involve expensive mechanical work or ECU tuning, which can make them complicated and costly.

The FullPower Drive Disabler simply plugs into your OBD-II port and keeps your engine operating in full V8 or V6 mode while connected—no tools, software, or shop visit required.

✓ Installs in seconds and can be unplugged anytime to return to factory operation.

Frequently asked questions

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How does the FullPower Drive disabler work?

It plugs into your vehicle’s OBD-II port and is designed to keep AFM/DFM cylinder-deactivation mode disabled while the device remains connected.

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How long does installation take?

Installation takes only a few seconds. No tools, software, or mechanical work are required.

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Can I remove it whenever I want?

Yes. The device is fully reversible. Simply unplug it to return the vehicle to its normal factory operation.

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Will it work with my truck or SUV?

Compatibility depends on your vehicle’s year, model, engine, and AFM/DFM system. Check our compatibility chart before ordering or contact us if you’re unsure.

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Does it permanently change my ECU?

No. The device does not permanently reprogram or tune your ECU.

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Can it repair an existing lifter problem?

No. It is not designed to repair existing mechanical damage. If your engine is already making unusual noises or showing symptoms, we recommend having it inspected by a qualified mechanic.

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What happens if I’m not satisfied?

You can contact us within 30 days of delivery to request a return in accordance with our refund policy.

What Drivers Are Saying

  • ★★★★★

    Mark G

    “I’ll be honest, I was skeptical at first. I kept seeing ads for it and finally decided to try it. After the first drive, I noticed the truck felt smoother and the shudder I used to feel while cruising was gone. Even my wife noticed the difference, which says a lot because she normally doesn’t pay attention to how the truck drives.”

  • ★★★★★

    jake F

    “I did a lot of research before buying because I didn’t want anything that permanently modified the ECU. What I liked about this is that it’s completely plug-and-play and easy to remove. I unplugged it before a dealer service visit, then plugged it back in when I got home. No issues at all.”

  • ★★★★★

    John D

    “I drive a 2019 Silverado 6.2 and bought this after reading way too many stories about lifter issues. I’ve had it installed since June, and the truck feels noticeably smoother on the highway with none of the annoying AFM transitions I used to feel. Fuel economy has barely changed for me—maybe around 0.5 MPG at most. So far, it’s done exactly what I hoped it would.”