Keep your 5.3 or 6.2 in full V8 — and off the lifter repair bill.
No more V8-to-V4 cycling every time you cruise
🛡️Guaranteed Fit for Your Truck — Or Your Money Back
👥 2 trucks in the family? The 2-pack is $67.48 each — save $44.95.
Stops AFM cycling — the wear that starts lifter failure
Plugs into your OBD-II port in 10 seconds (no tools, no tune)
Blue light on = it's working
Unplug anytime — your truck goes right back to factory
Made for Silverado & Sierra 1500 owners
To save 1–2 MPG, GM's AFM/DFM drops your V8 to 4 cylinders at cruise — and switches back hundreds of times a drive. Every switch loads the lifters. On high-mileage 5.3s and 6.2s, that's where lifter failure starts — and a lifter job runs into the thousands.
This plug keeps every cylinder working, every mile.
It fits Chevy Silverado 1500 and GMC Sierra 1500, 2007–2022, with the 5.3L or 6.2L V8. Not sure about yours? Message us your year and engine before you order.
Nothing is reflashed or permanently changed. Pull it out and the truck runs exactly as it did from the factory. We recommend unplugging it before dealer service visits.
A little, on the highway. AFM exists to save 1–2 MPG. Most owners take that trade over a lifter repair.
It's fine for daily driving. If the truck will sit for more than a week, unplug it. Note: it is not for sale or use in California.
Full V8. Every Mile. No Tune.
Plug it in under the dash, see the blue light, drive. Your engine stays in full-cylinder mode until you unplug it.
10-second plug-in install
No reflash — unplug to go back to factory
Blue LED shows it's active
Full power when you tow
One plug. No tools. No tune. Your truck, back in full V8.
TruckEdge AFM/DFM Disabler – Silverado & Sierra 1500 (2007–2022)
What changes the moment the blue light comes on.
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TruckEdge
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Stock AFM
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Stays in full V8
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No V8-to-V4 cycling
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No cylinder drop when towing
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No lifter wear from switching
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Engine runs smooth at cruise
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What Changes When It's Plugged In
First Benefit
Full V8, Always
Your engine stays in full-cylinder mode while you drive.
Second Benefit
Strong When You Tow
No cylinder drop on a hill with a trailer behind you.
Third Benefit
Easy To Undo
Unplug anytime. Nothing reflashed, nothing to reset.
