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  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
  • FullForce™ AFM/DFM Disabler
1 9

4.91/5 (30,871 Trusted Drivers)

FullForce™ AFM/DFM Disabler

FullForce™ AFM/DFM Disabler

$84.99 $149.99
SAVE 43%
  • Designed In USA
  • Saves Lifters
  • Warranty Safe
  • Instant Setup

Quantity :

Subtotal: $84.99

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Jason L.
Jason L.

Having power ready all the time makes it feel less laggy. The truck responds quicker now, and the exhaust drone isn’t there anymore.

1 New Reviews

Beware of Imitations.

Some sellers sell cheap clones with no testing, no support, no guarantee. FullForce™ is the only AFM disabler backed by a 100% satisfaction guarantee, free shipping, and a real team behind every unit.

Trusted by Over 30,000 Drivers Worldwide

Fitment check

Will It Fit My Vehicle?

Select your make, model and year — we'll check it against our full compatibility list instantly.

Don't see your vehicle? Message us — and you're always covered by our returns policy.

Reclaim the full V8 power you paid for and protect your engine from costly lifter failure. This plug-and-play module stops annoying cylinder deactivation to ensure smooth, reliable performance for the long haul.

  • Stop costly lifter failure and engine wear
  • Reclaim 100% of your V8 power at all times
  • 30-second plug-and-play install, no tools
  • 100% warranty safe and leaves no trace

Question 1: Will using this device void my vehicle's factory warranty?
Answer 1: Absolutely not. Unlike permanent ECU flashes or tunes, this module is 100% reversible. It doesn't rewrite your vehicle's software, so once you unplug it, no trace is left behind. Your warranty remains fully intact while your engine stays protected.

Question 2: Do I need any special tools or mechanical skills to install it?
Answer 2: Not at all. We designed this for a true 'plug-and-forget' experience. It plugs directly into your vehicle's OBD-II port—usually found under the dashboard—in about 30 seconds. No tools, no wiring, and no complex setup are required to reclaim your full V8 power.

Question 3: How does this prevent expensive engine repairs like lifter failure?
Answer 3: Factory fuel management systems cause mechanical stress and excessive oil consumption during the constant transition between cylinder modes. By keeping all cylinders active at all times, this device eliminates that cycle, preventing the premature lifter wear and 'shudder' that often lead to $4,000+ repair bills.

We offer Free Express Shipping on all orders! Please allow 1-2 Business Days for us to process and ship your order. Estimated Arrival Time: 3-5 business days.
FullForce™ AFM/DFM Disabler

FullForce™ AFM/DFM Disabler

$84.99
$84.99 $149.99
View full details
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power
Protect Your Engine
Easy Plug-In Setup
Warranty Safe Design
Restore Full Power

How it compares

Same Protection, Without the Surgery

Other OptionsTune · Delete
BestFullForce
Stops the AFM cylinder cycling
✓
✓
Reversible in seconds
✕
✓
No permanent change to your truck
✕
✓
No reflash or shop visit
✕
✓
Install time
Shop visit
~30 sec
Typical cost
$400–$2,000+
$84.99

Doing nothing risks a $3,000–$8,500 lifter repair later — FullForce is cheap insurance against it.

Get The Reliable Performance You Paid For

Prevent catastrophic lifter failure and expensive repairs. This simple solution restores smooth V8 power and protects your engine without voiding your warranty.

  • Avoid $4,000 engine repairs and lifter failure.
  • Experience smooth power without the annoying shudder.
  • Protect your resale value with 100% reversibility.

Your GM Engine Is Destroying Itself Every Time You Drive

GM's Active and Dynamic Fuel Management constantly cycles your engine between V8 and V4 mode. Every cycle stresses your lifters — until they fail.

Lifter Failure

The constant switching between V8 and V4 mode wears down your lifters prematurely. GM's own service bulletins acknowledge the failure pattern — it is not a matter of if, but when.

Engine Shudder

Feel that rough vibration around 40 to 50 mph when your truck drops into 4-cylinder mode? That shudder is not normal driving — it is your engine under stress every single time it cycles down.

$4,000 to $8,500 Engine Repair

When lifters fail, you are looking at a full engine teardown — 12 to 14 hours of labor before parts. Truck owners pay thousands, or junk the engine entirely. Good maintenance does not stop it.

$84.99

FullForce™ — cheap insurance vs. a $4,000+ engine repair

Why 30,000 Drivers Trust This Solution

Delivering quality and consistency that customers rely on.

92%

Avoided Costly Engine Repairs

Protected their engines from expensive lifter failure and reduced oil consumption without complex tools.

87%

Reclaimed Full V8 Power

Experienced immediate smooth acceleration and eliminated the hesitation caused by factory cylinder deactivation.

94%

Maintained Factory Warranty Status

Used a completely reversible solution that left no trace on the vehicle diagnostic system.

Benefits You'll Love

Worldwide Shipping

24/7 Support

Verified quality only

Hassle-free returns
 
 

Engineered for Drivers

Eliminate engine shudder and avoid $4,000 repair bills with a warranty-safe, plug-and-play solution that keeps your V8 firing on all cylinders without permanent modifications or complex tuning.

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FullForce™
Others
Warranty Safe
Quick Installation
No Battery Drain
No ECU Footprint
Stops Lifter Wear
Shop Now

Real Experience from Real People. 

See what drivers like you are saying
Brad C.
No issues, no codes. Does what it’s supposed to. Easy to install and take off if needed. Throttle feels a bit better and mileage didn’t change. Worth it.
Marcus F.
Glad I picked it up. No problems so far. Used to get in and mess with settings, now I just get in and drive.
Ryan P.
Truck feels stronger, shifts smoother, and no hesitation when towing. Been running it for a while with no issues.
Meggan M.
After dealing with lifter issues around 100k miles, I didn’t want to risk it again. Put this on my 2015 Silverado and it’s been running smoother since.

Reclaim Your V8's Full Power

  • First Benefit

    Stop Lifter Failure

    Avoid expensive repairs and keep your engine healthy.

  • Second Benefit

    Smooth Performance

    Eliminate hesitation with consistent V8 power delivery.

  • Third Benefit

    Warranty Safe

    Leaves no trace on your vehicle's factory settings.

Frequently Asked Questions

Find quick answers to the most common questions about our product.

Not at all. This device communicates with your vehicle without rewriting the factory software. Unlike a permanent ECU flash, it leaves no electronic footprint behind. Simply unplug it before taking your truck in for service, and your factory settings remain completely untouched and 100% warranty-safe.

You don’t need a mechanic or a toolbox for this. It’s a true plug-and-play solution that connects directly to your onboard diagnostic port in seconds. Once it’s in, it starts working immediately to keep your engine in full-power mode without any complex programming or permanent modifications.

We have engineered this module with advanced power management to prevent battery depletion. It only draws power when the engine is active and enters a low-power sleep mode when the vehicle is off. You can leave it plugged in with total confidence, even during short periods of storage.

Yes, by keeping all cylinders active, you eliminate the constant switching that causes excessive wear on lifters and oil consumption issues. It acts like an insurance policy for your engine, preventing the notorious 'shudder' and protecting you from catastrophic mechanical failures that often cost upwards of $4,000.