SALE: $84.99 (reg. $149.99)  ·  Free shipping  ·  60-day money-back guarantee
For 2007 to 2022 GM V6 & V8Trucks and SUVs · 4 min read

Tired of Disablers That Quit After a Month? 7 Reasons GM Owners Are Switching to the One That Plugs In in 30 Seconds and Is Still Covered in Month Two

FullForce keeps every cylinder firing so your lifters stop taking the wear from cylinder switching. No tools, no reprogramming, nothing hidden from your dash, and a 60-day money-back guarantee with a lifetime warranty behind it.

★★★★★4.91/5 from 30,871 drivers
The FullForce AFM/DFM disabler held in a hand
Fits 2007 to 2022 GM V6 & V8Plugs in about 30 secondsWorks with remote startLifetime warranty

If you’ve tried a disabler before, you already know the problem isn’t the idea. Stopping your GM engine from switching cylinders off is the right move for your lifters. The problem is buying a unit you can’t trust: one that works for a few weeks, leaves you guessing about every new light, and runs out of return window right when it matters.

So we did something most brands won’t. We took the questions skeptical owners actually ask, the ones you’re probably asking right now, and answered every one of them straight. No dodging, and nothing you have to take on faith: each answer comes with a way to check it on your own truck. Here’s why owners who are done guessing are making FullForce the last disabler they buy.

Check today’s price: $84.99 →
Reg. $149.99 · Free shipping · 60-day money-back guarantee
The 7 reasons
  1. One job, in writing, so you can hold us to it
  2. Your dash still tells you the truth
  3. Nothing permanent: pull it out and it’s stock
  4. Built for the moments other units quit
  5. A guarantee that covers month two
  6. The catch, told before you buy
  7. All the risk sits with us
1
The question skeptics ask“Aren’t these all the same cheap plug with a different sticker on it?”

We put one job in writing, so you can hold us to it

Chevy Silverado on an open country highway
All your cylinders, the whole drive. That is the job.

Fair question. Plenty of disablers look alike, and most listings won’t tell you much beyond “plug and play.” So don’t judge by the plastic. Judge by what the company is willing to be held to.

Here’s ours, in writing. FullForce does one job: it stops your GM engine from shutting cylinders off. Your truck stays in full V8 (or full V6) mode, so it drives the way it did the day you bought it, without the shudder, the soft pull or the hunting between modes. No tune, no extra features, no second purpose.

Then we back that one job with a 60-day money-back guarantee and a lifetime warranty on the unit. Think about what that means. A seller who expects units to come back in a few weeks can’t afford to make those promises. We make them because we don’t expect yours to come back.

Check it yourselfDrive your normal route the day it arrives. The switching you’re used to feeling at cruise should be gone on the first trip. If it isn’t, you have 60 days to send it back.
Most other disablersPromise five features in one plug, so you can never tell which one failed.
2
The question skeptics ask“Will it throw codes, or worse, hide a real problem from me?”

Your dash still tells you the truth

Driver view of a GMC Sierra dash on the highway with no warning lights
If a light comes on, it means something.

This is the fear that keeps most owners up at night, and they’re right to have it. Owners post about lights that show up a week or two after an install, and about cheap units that kept a truck from warning its owner when something was actually wrong. Either way, you stop trusting your own dash.

FullForce doesn’t affect your codes. If something real goes wrong, the check engine light still comes on and you still find out. It doesn’t affect your emissions. It doesn’t sit between you and your truck’s warning system. A truck that can’t warn you can’t protect you, so we left yours alone.

That’s the difference between a disabler you tolerate and one you trust: when a light comes on, you know it’s the truck talking.

Check it yourselfPlug any scan tool in after install. It reads your truck the way it did before, because FullForce leaves your codes alone.
Most other disablersLeave you pulling the unit and clearing codes every time the dash changes, never sure what caused it.
3
The question skeptics ask“Is it messing with my truck’s computer? What if I want it gone?”

Nothing permanent: pull it out and your truck is stock

FullForce module plugged into the OBD2 port under a GM dash
Plugged in. That’s the whole install.
Hand unplugging the FullForce module from the OBD2 port
Pull it out and the truck is back to stock.

You shouldn’t have to trust anyone with a change you can’t take back. So FullForce doesn’t make one.

It doesn’t reprogram your computer. It doesn’t flash, tune or write anything to your truck. It plugs into the OBD2 port under the dash, the same port a shop uses to read your codes, in about 30 seconds with no tools and no wiring. And the moment you pull it out, the truck is exactly what it was before. No reset, nothing to undo, nothing left behind.

Selling the truck, trading it in, or just changed your mind? Unplug it. You’re never locked in.

Check it yourselfUnplug it after a week. The truck goes straight back to how it drove before. That’s how you know nothing was changed.
Most other disablersRewrite settings you can’t see, so you’re never sure pulling the unit actually put things back.
4
The question skeptics ask“My last one worked for a month, then stopped. Why would this be any different?”

It’s built for the moments other units quit

Man walking to a Chevy Tahoe warming up after a remote start on a frosty morning
Cold morning, remote start, coffee in hand. FullForce doesn’t care how you start the truck.

If that’s happened to you, you’re not alone, and you’re not wrong to be skeptical. When owners post about a disabler quitting, it’s almost never day one. It’s the first cold snap, the first remote start, the week the routine changed.

FullForce was built around exactly those moments. It stays on whenever it’s plugged in, so there’s nothing to wake up and nothing to switch on. It works with remote start, so starting the truck from the kitchen isn’t a step you undo or redo. You set it once and drive your truck the way you always have.

We won’t pretend any plug-in is a guarantee, ours included. Nobody honest can. What’s different is what happens if it ever does let you down, and that’s the next reason.

Check it yourselfRun it through a month of real life: remote starts, short trips, a weekend haul. You shouldn’t have to think about it once.
Most other disablersWork fine on install day and quit the first time the routine changes.
Put it on your truck and judge it yourself.
30-second install. 60 days to send it back. Lifetime warranty after that.
FullForce module$84.99$149.99Save $65
Get FullForce for $84.99 →
Free shipping · 60-day money-back guarantee · Lifetime warranty
5
The question skeptics ask“Five-star reviews looked great on my last one too. What happens if this quits in month two?”

Our guarantee covers month two, where the problems actually start

Garage calendar marked day 1, first remote start, and month 2 still covered
Most disabler problems don’t show up in week one. Your guarantee shouldn’t end there either.

Here’s the honest truth about reviews: a review tells you how an owner felt on the day he wrote it. If his unit quit in month two, that hadn’t happened yet. So a five-star average and a one-star story can both be true about the same unit.

That’s why we don’t ask you to trust ratings. We put month two in writing. A return window is just a number somebody picks, and one that closes before month two can’t cover a month-two problem. That isn’t a trick. It’s arithmetic.

FullForce gives you 60 days to send it back for your money. That reaches well into month two, through the stretch where other units tend to quit. And after that, a lifetime warranty on the unit sits behind it. You’re not buying a promise. You’re buying the time to find out for yourself.

Check it yourselfMark today on a calendar, then mark day 60. Anything that goes wrong in between is our problem, not yours.
Most other disablersGive you a return window that closes right around the time problems start.
6
The question skeptics ask“Okay, so what’s the catch? Battery drain? Gas mileage? Something they don’t tell you?”

We tell you the catch before you buy, not in week three

Key hook with a sticky note reading truck sitting 5+ days, unplug the FullForce
The whole fine print fits on a sticky note.

You can tell a lot about a company by what it admits. So here’s everything, before you spend a dollar:

No surprises in week three. A brand willing to show you its limits on day one is a brand you can believe about everything else.

Check it yourselfRead the rest of this page and our product page. You won’t find a limit that isn’t on this list.
Most other disablersBury the limits in a listing, or let you find them the hard way.
7
The question skeptics ask“Is it too late for my truck? And is $84.99 really worth it?”

All the risk sits with us, not with your engine

When AFM lifters failThousandsLifters, guides, often a camshaft, plus days without your truck
FullForce today$84.9960 days to return it. Lifetime warranty after.

First, the straight answer on “too late.” FullForce won’t repair a lifter that already ticks. If yours is ticking, get it looked at first. We’d rather tell you that than sell you something that can’t help.

If it isn’t ticking, here’s the math. When AFM lifters fail, the fix usually means lifters, guides and often a camshaft, and shops commonly quote thousands of dollars. FullForce is $84.99, less than one hour of labor at most shops, and it goes after the switching that wears those parts in the first place. If it doesn’t work for you, you get your money back inside 60 days. If the unit fails after that, the lifetime warranty covers it.

The only way to lose here is to wait while your engine keeps switching.

FullForce module, extension cable and ebook unboxed on a workbench
What shows up at your door.
Silverado, Sierra, Tahoe and Yukon parked side by side
Silverado, Sierra, Tahoe, Yukon, Suburban and more: 2007 to 2022 GM V6 and V8.
Check it yourselfAdd it up: $84.99, refundable for 60 days, warrantied for life, against a repair bill in the thousands.
Most other disablersPush the risk back onto you with short windows and fine print.

Check any disabler against this list

Bring it to whatever listing you’re looking at. If it can’t answer every line, you’re back to guessing.

The question
FullForce
Ask the other brand
What is its one job?
Stops cylinder switching
?
Does it affect your codes?
No
?
Does it reprogram anything?
No
?
Works with remote start?
Yes
?
Still returnable in month two?
Yes, 60 days
?
Warranty after that?
Lifetime
?
Can you undo it completely?
Yes, unplug it
?
Limits told up front?
Yes, all of them
?

What happens after you order

  1. Order todayLock in $84.99 (reg. $149.99). Shipping is free.
  2. Plug it inAbout 30 seconds under the dash. No tools, no app, nothing to set up.
  3. Drive for 60 daysFeel the difference. Watch your dash. Not happy? Send it back for your money.
60DAY

Our month-two guarantee

Run FullForce for 60 days. If it doesn’t keep your truck out of cylinder switching, or you just don’t like it, send it back and get your money back. After that, the lifetime warranty on the unit has you covered. The only thing you risk by trying it is the shipping box.

Why today, and not next month

Every drive adds more switching. Your truck can drop cylinders and bring them back many times on a single trip. Each one is another cycle on the lifters, and none of them can be taken back. The sooner FullForce is in the port, the fewer of them your engine has to absorb.

The $65 discount is a sale price. FullForce is $84.99 right now, down from $149.99, with free shipping, a free extension cable and a free ebook. Sale pricing doesn’t last forever, and the regular price comes back without notice.

Waiting doesn’t lower your risk. Trying it does. With 60 days to send it back and a lifetime warranty behind it, the safest move is to put it on your truck and judge it yourself.

Lock in $84.99 now →
Reg. $149.99 · Free shipping · 60-day money-back guarantee
FullForce module

Make this the last disabler you buy

Fits 2007 to 2022 GM V6 and V8 trucks and SUVs

$84.99$149.99Save $65
Order FullForce now →
Plugs in about 30 secondsNo toolsUnplugs back to stock

Quick questions

Will it fit my truck?

FullForce fits 2007 to 2022 GM V6 and V8 trucks and SUVs, including Silverado, Sierra, Tahoe, Yukon and Suburban.

How long does it take to install?

About 30 seconds. It plugs into the OBD2 port under the dash. No tools and no wiring.

Will it drain my battery?

The draw is very low. If the truck will sit parked for five to seven days or more, unplug it and plug it back in when you’re driving again.

Does it work with remote start?

Yes. Starting the truck remotely isn’t a step you have to undo or redo.

What if it doesn’t work out?

You have 60 days to send it back for your money, and a lifetime warranty on the unit after that.

Will I lose gas mileage?

Cylinder switching exists to save a little fuel, so you may give some of that back. That’s the trade for keeping all your cylinders and taking the switching off your lifters.

Can I take it out later?

Yes. Pull it out of the port and the truck is back to stock. It doesn’t reprogram anything.

FullForce is an independent product and is not affiliated with or endorsed by General Motors. Chevrolet, GMC, Silverado, Sierra, Tahoe, Yukon and Suburban are trademarks of General Motors. Rating shown is from the FullForce product page. Results vary by vehicle and condition.

FullForce
FullForce AFM/DFM Disabler
$84.99$149.99Save $65
Free shipping · 60-day money-back
60-day money-back · Lifetime warranty
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