
Frequently Asked Questions
How does that Work?
How does that Work?
The CylinderGuard module plugs into your OBD2 port and sends a passive signal that prevents the ECU from engaging cylinder deactivation mode. It doesnot reprogram or write to your ECU— it simply interrupts the AFM/DFM trigger so all cylinders stay active every time you drive.
Which vehicles is it compatible with?
Which vehicles is it compatible with?
CylinderGuard is compatible withV6 and V8 GM-powered vehiclesincluding Chevrolet Silverado, GMC Sierra, GMC Yukon, Cadillac Escalade, and more. Supported engine sizes:4.3L, 5.3L, 6.0L, and 6.2L across model years 2007–2022.
How to install? Do I did a Mechanic?
How to install? Do I did a Mechanic?
Not at all. Find your OBD2 port (under the dash, driver's side), plug in the module, and start your vehicle. The entire process takes under 60 seconds with zero tools. To remove it, just unplug it, no trace left behind, vehicle stays completely stock.
What if I have trouble With My Order?
What if I have trouble With My Order?
We stand behind every unit we ship. If something isn't right,
email us at [woinexofficial@gmail.com]
and we'll make it right. We offer returns within 30 days on unused items.
* See our full Return Policy for details.
Why Getting a DFM/AFM Disabler?
Built for GM truck owners who refuse to gamble with a $6,000 repair bill and laggy driving experience.
One Module, Full Protection.
The switch that everything Truck Driver Needs.
Plug-In & Drive
installs in seconds, no tools needed
GM Compatible
Fits Silverado, Sierra, Yukon, Escalade & more
Full Cylinder Power
restores V8 performance instantly
Recommend By Many 📱
Our Solution™ vs. Dealership
Compare the costs and benefits
Woinex AFM/DFM Disabler
- Plug into OBD-II port — done in 60 seconds
- Zero ECU modifications
- Keeps Your Engine Running Smoothly
- Protect Engine Lifespan
60 Second Plug & Play
DEALERSHIP
- Complex installation requires a shop
- Requires full engine teardown
- Permanent — can't undo without more labor
- ECU reprogramming may void warranty
Parts + labor
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