AFM/DFM Disabler – Keep Your V8 Running Strong

Say Goodbye to AFM/DFM: Protect Your Engine & Unleash 100% Power

Tired of your truck's engine constantly switching cylinders on the highway, causing that annoying lag and vibration? Our AFMM Disabler is the simple, smart plug-in solution for your GM vehicle. It keeps your V6 or V8 running on all cylinders, full-time, delivering smoother power, instant throttle response, and real peace of mind.

Why is this a must-have?

While GM's Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems aim to save fuel, they're notoriously hard on your engine. The constant shutting on and off of cylinders is the #1 cause of costly lifter failure – a repair that can run into thousands of dollars.

Our device completely disables AFM/DFM without any permanent programming. It’s fully reversible (just unplug it) and undetectable by your dealer, keeping your warranty intact. The result? You protect your engine from premature wear, eliminate performance-robbing hesitation, and get back the confident, smooth power your truck was meant to have.

Why You'll Love The Disabler:

✔️ Full-Time, Smooth Power: Eliminates all lag, vibration, and weird exhaust sound changes caused by cylinder deactivation. Your drive is consistently smooth and responsive.

✔️ Built for Lifter Protection: Stops the cycle of wear that leads to expensive lifter failure. It’s the cheapest insurance you can buy for your engine.

✔️ True Plug & Play in 60 Seconds: No tools, wiring, or laptop tuning required. Find your OBD-II port (under the dash), plug it in, and drive. To remove, simply unplug – your factory settings return instantly.

✔️ Broad GM Compatibility: Our upgraded design supports a wide range of GM V8 and V6 engines (including 4.3L, 5.3L, 6.0L, 6.2L) across many model years of trucks, SUVs, and cars.*

✔️ Backed by Real Support: We stand by our product with quality you can trust and 24/7 customer service to answer your questions.

Easy Plug-and-Play Installation

Step 1: Plug It In

Locate your vehicle’s OBD‑II port (usually under the dash near the steering wheel).

Plug the AFM/DFM Disabler into the port—you can do this with the engine on or off.

• If the vehicle is off: The LED will blink a few times and then turn off. That’s normal—it’s in standby mode.

• If the vehicle is on: The LED will blink, then switch to a solid green light after a few seconds.

Step 2: You’re Ready to Drive!

Once the light stays solid green, the device is successfully communicating with your truck or SUV. Just start driving and enjoy smoother, full-cylinder performance right away.

💡 Helpful Tip:

Our disabler is designed with ultra‑low power draw, so you can safely leave it plugged in for weeks between drives. If you plan to park your vehicle for a month or longer, we recommend simply unplugging it for total peace of mind—no settings to reset, no fuss.

⚠️ NOTE – Please Verify Fitment:

Here’s the straight talk on what vehicles our disabler works with. The main rule is simple: it works on almost any GM vehicle with AFM/DFM, exceptfor the specific exclusions listed below.

🚫 What It Won't Work On (Important!)

Please read this first to save us both a headache.

• ❌ Does NOT fit 2023 or 2024 model year trucks or SUVs of any kind (Silverado, Sierra, Tahoe, etc.).

• ❌ Does NOT fit the newer 2022 "Refresh" models of trucks and SUVs. It will work on early 2022 models made before the refresh.

• ❌ Does NOT fit any 2019 or newer vehicle that has botha 5.3L or 6.2L engine ANDthe 10-speed automatic transmission.

• 🚗 The Camaro is the ONLY exception! Our disabler DOES fit 2023 & 2024 Chevrolet Camaros.

👉 DOUBLE-CHECK YOUR RIDE. Use the tool below to confirm it works for your specific truck, SUV, or car before you buy.

✅ What It Works On (Primary Applications List)

If your vehicle isn't in the "Won't Work" list above, it likely works. Below is a list of the most common compatible models. (Note: There are other less common GM vehicles that also work but aren't listed here.)

Full-Size Trucks & SUVs

• Chevy Silverado 1500 / GMC Sierra 1500

  • Model Years: 2008-2022

  • Engines: 5.3L, 6.0L, 6.2L

  • (4.3L engines: 2008-2018 only)

  • Excludes 2022 Refresh models and all 10-speed transmissions.

• Chevy Suburban / Tahoe & GMC Yukon / Cadillac Escalade

  • Model Years: 2008-2020

  • Engines: 5.3L, 6.0L, 6.2L

• Chevy Avalanche

  • Model Years: 2008-2013

  • Engines: 5.3L, 6.0L

Cars & Sports Cars

• Chevrolet Camaro

  • Model Years: 2010-2024

  • Engines: 3.6L V6, 6.2L V8

• Chevrolet Corvette

  • Model Years: 2012-2019

  • Engines: 6.2L V8

Midsize Trucks

• Chevy Colorado / GMC Canyon

  • Model Years: 2015-2020

  • Engines: 3.6L V6

Cadillac Models

• ATS (2013-2019) – 3.6L

• CTS (2004-2019) – 3.6L, 6.0L, 6.2L

• CT6 (2016-2018) – 3.0L, 3.6L

• SRX (2004-2009) – 3.6L

• STS (2005-2007) – 3.6L

• XT5 (2017-2019) – 3.6L

• XTS (2013-2018) – 3.6L

Other GM Vehicles (Chevy, GMC, Buick, Pontiac)

• Acadia (2007-2008) – 3.6L

• Ascender (2005-2006) – 5.3L

• Aura (2007-2009) – 3.6L

• Blazer (2020-2022) – 3.6L

• Caprice (2011-2017) – 6.

• Enclave (2008-2020) – 3.6L

• Envision (2017-2018) – 2.5L

• Equinox (2008-2009) – 3.6L

• G6 / G8 (2007-2009) – 3.9L, 3.6L, 6.0L, 6.2L

• Impala (2006-2009) – 3.9L, 5.3L

• Lacrosse (2005-2009, 2016-2018) – 3.6L, 5.3L

• Malibu (2006-2012) – 3.6L, 3.9L

• Monte Carlo SS (2006-2007) – 5.3L

• Trailblazer (2006-2009) – 5.3L

• Uplander (2006-2008) – 3.9L