"Plugged it in two years ago, my Silverado still runs like new at 287K miles all thanks to this disabler.“
AFM/DFM Disabler
AFM/DFM Disabler
Prevent $6,000+ AFM lifter failure, restore smoother V8 power, and add years to your engine's life.
BUNDLE & SAVE
Couldn't load pickup availability
AFM/DFM Disabler
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
$500,000,000+ SAVED IN ENGINE REPAIRS
100,000+ TRUCKS PROTECTED
8,000+ 5-STAR REVIEWS
SHIPPED TO ALL 50 STATES
Save thousands in engine repairs
The Active Fuel Management system in your GM cycles special lifters on and off hundreds of times per drive. Eventually one fails, the camshaft gets chewed up, and metal goes through the entire engine.
The average repair bill is $6,000, and a full engine replacement can run over $10,000. Owners who installed the disabler before damage started have collectively saved over $500 million that would have otherwise gone to GM dealerships.
Installs in 10 seconds
Most fixes for AFM require a mechanic, expensive tools, or risky ECU tuning. That's why most owners put it off until their lifters are already failing.
The disabler plugs into your OBD2 port under the dash and locks your engine in full V8 or V6 mode the moment it's connected. No tools, no software, no shop visit.
Drives the way it was meant to
Every time AFM kicks in or out, your truck shifts between full power and half power. You feel a shudder when cruising and a lag when accelerating, with a noticeable jolt every time the cylinders fire back up. It's worst in stop-and-go traffic and on hills, where the engine is constantly switching modes.
With AFM disabled, your engine stays in full mode every mile you drive.
Stop losing a quart of oil between changes
AFM doesn't just destroy engines, it also burns oil. When the system deactivates cylinders, oil gets pulled past the piston rings and burns in the combustion chamber. Owners regularly report adding 1-2 quarts of oil between changes on AFM-equipped trucks.
After disabling AFM, oil consumption drops dramatically. Many owners report no measurable consumption at all.
I just did my second oil change since putting my AFM disabler in. I recovered 5 full quarts. When I first got this truck I was alarmed to have only recovered roughly 3 1/2 quarts. It's clearly cut down on oil consumption significantly. Highly recommend this device to anybody."
|
AFM Delete (Shop) | Doing Nothing | |
|---|---|---|---|
| Protects engine | |||
| Smoother driving | |||
| Less oil burn | |||
| Quick installation | |||
| Fully reversible | |||
| Keeps warranty | |||
| Under $100 |
100,000+ Trucks Protected
97%
said their truck drove smoother after install
94%
would recommend it to another GM owner
89%
reported reduced oil consumption between changes
Frequently asked questions
Will this void my warranty?
Will this void my warranty?
No. The disabler doesn't modify your ECU and leaves no trace. Unplug it before a dealership visit and your truck reads as 100% stock. Plenty of owners run them under active warranty without issue.
Is it safe to run my engine on all cylinders all the time?
Is it safe to run my engine on all cylinders all the time?
Yes. GM didn't add AFM because it's better for your engine. They added it to hit federal fuel economy targets. GM V6 and V8 engines were originally designed to run on all cylinders all the time, and they did exactly that reliably for decades before AFM existed. Disabling AFM removes the constant cycling that wears out lifters and camshafts. The engine runs the way it was meant to.
Will I lose fuel mileage?
Will I lose fuel mileage?
Slightly. Most owners report a drop of about 0.5 to 1 MPG on the highway and almost no measurable change in city driving. The savings GM promised from AFM were always marginal. For most owners, the trade-off is worth it — saving 1 MPG isn't worth a $6,000 engine repair.
Will this fix my engine if it's already making noise?
Will this fix my engine if it's already making noise?
The disabler prevents future damage by stopping the system from running. It cannot reverse damage that's already occurred. If your truck is already ticking, knocking, or misfiring, get it diagnosed first. The disabler protects engines that aren't yet damaged.
Will I get a check engine light?
Will I get a check engine light?
No. The device communicates with your ECU in a way that keeps the engine in full-cylinder mode without triggering any diagnostic codes. Your dashboard will look exactly the same as it does now.
Does it work on V6 engines too?
Does it work on V6 engines too?
Yes. Several GM V6 engines (like the 3.6L in the Camaro, Colorado, Impala, ATS, CTS, and more) also have Active Fuel Management. The disabler works on both V6 and V8 GM vehicles equipped with AFM or DFM from 2007 to 2022.
What's the difference between AFM and DFM?
What's the difference between AFM and DFM?
AFM (Active Fuel Management) is the original system used from 2007 to 2018. DFM (Dynamic Fuel Management) is the updated version in 2019+ trucks. They work on the same principle and have the same failure mode. Our device covers both AFM and DFM systems on supported model years.
What if I don't like it?
What if I don't like it?
Send it back within 30 days for a full refund. No questions asked.