Rated 4.9 by 32,000+ Drivers
Lifetime Warranty
- Keep every cylinder firing 24/7
- Prevent thousands in repair bills
- Smoother power without shudder
- Warranty & ECU stays 100% safe
Free Shipping
30-Day Guarantee
Mike R.
"I'm an independent mechanic and I put these on every GM that comes through my shop. Stops the AFM cycling that destroys lifters. I wish more people knew about this."
Does It Fit My Vehicle?
Compatible with 80+ GM models across Chevy, GMC, Cadillac, Buick, Pontiac, Holden, and more. Find yours below:
Model
Engine
Years
Avalanche
5.3L V8
2007–2013
Avalanche
6.0L V8
2007–2009
Avalanche
6.2L V8
2010–2013
Blazer
3.6L V6
2019–2022
Camaro
3.6L V6
2016–2024
Camaro
6.2L V8
2010–2024
Caprice PPV
6.0L V8
2011–2017
Colorado
3.6L V6
2015–2020
Corvette
6.2L V8
2014–2019
Equinox Sport
3.6L V6
2008–2009
Express 1500
5.3L V8
2014
Impala
3.9L V6
2007–2009
Impala
5.3L V8
2006–2009
Malibu
3.6L V6
2008–2012
Malibu
3.9L V6
2006–2009
Monte Carlo
5.3L V8
2006–2007
Silverado 1500
4.3L V6
2014–2021
Silverado 1500
5.3L V8
2007–2022
Silverado 1500
6.0L V8
2007–2013
Silverado 1500
6.2L V8
2014–2022
Silverado 1500 LD
5.3L V8
2019
SS
6.2L V8
2014–2017
Suburban
5.3L V8
2014–2020
Suburban
6.2L V8
2019–2020
Suburban 1500
5.3L V8
2007–2014
Suburban 1500
6.0L V8
2007–2013
Suburban 2500
6.0L V8
2007–2013
Tahoe
5.3L V8
2007–2020
Tahoe
6.0L V8
2007–2014
Tahoe
6.2L V8
2015–2020
Trailblazer
5.3L V8
2005–2009
Uplander
3.9L V6
2006–2009
Model
Engine
Years
Acadia
3.6L V6
2007–2008
Canyon
3.6L V6
2015–2020
Envoy
5.3L V8
2005–2009
Sierra 1500
4.3L V6
2014–2018
Sierra 1500
5.3L V8
2007–2022
Sierra 1500
6.0L V8
2007–2013
Sierra 1500
6.2L V8
2014–2022
Sierra / Denali
6.2L V8
2014–2018
Yukon
5.3L V8
2007–2020
Yukon
6.0L V8
2007–2014
Yukon
6.2L V8
2010–2020
Yukon Denali
6.2L V8
2010–2018
Yukon Denali XL
6.2L V8
2010–2018
Yukon XL
5.3L V8
2015–2020
Yukon XL
6.0L V8
2007–2014
Yukon XL
6.2L V8
2010–2018
Model
Engine
Years
ATS
3.6L V6
2013–2019
CT6
3.6L V6
2016–2018
CT6 (non Hybrid)
3.0L V6
2016–2018
CTS
3.6L V6
2004–2019
CTS
6.0L V8
2006–2007
CTS
6.2L V8
2009–2019
Escalade / ESV
6.0/6.2L V8
2010–2020
Escalade ESV
6.2L V8
2010–2013
Escalade EXT
6.2L V8
2010–2013
SRX
3.6L V6
2004–2009
STS
3.6L V6
2005–2007
XT5
3.6L V6
2017–2019
XTS
3.6L V6
2013–2019
Model
Engine
Years
Enclave
3.6L V6
2008–2020
Envision
2.5L L4
2017–2018
LaCrosse
3.6L V6
2005–2019
LaCrosse
5.3L V8
2008–2009
Rainier
5.3L V8
2005–2007
Regal GS
3.6L V6
2018
Rendezvous
3.5/3.6L V6
2006–2007
Terraza
3.9L V6
2006–2007
Model
Engine
Years
G6
3.6L V6
2008–2009
G6
3.9L V6
2007
G8
3.6L V6
2008–2009
G8
6.0L V8
2008–2009
Grand Prix
3.8L V6
2007
Grand Prix
5.3L V8
2005–2008
Montana
3.9L V6
2006–2009
Torrent
3.6L V6
2008–2009
Model
Engine
Years
VZ Calais SV6
3.6L V6
2006–2018
Commodore Wagon
3.6L V6
2006–2018
VZ Commodore Sedan
3.6L V6
2006–2018
Crewman / UTE
3.6L V6
2006–2018
9C1 Police Special
6.0L V8
2015–2018
Rodeo
3.6L V6
2006–2011
Colorado
3.6L V6
2006–2009
VE Commodore Omega
3.6L V6
2006–2009
WL Statesman
3.6L V6
2006–2017
WM Statesman / Caprice
3.6L V6
2006–2017
Model
Engine
Years
Saab Outlook XE
3.6L V6
2007–2008
Saab Relay
3.9L V6
2006–2008
Saab 9-7X
5.3L V8
2005–2009
Saturn Aura XR
3.6L V6
2007–2009
Saturn VUE XR / Red Line
3.9L V6
2008–2009
Isuzu Aura XR
3.6L V6
2007–2009
Isuzu Ascender
5.3L V8
2005–2009
Suzuki XL2
3.6L V6
2007–2009
Protects Your Engine
Lifter failure on your truck can cost $3000-$12000 and can happen without warning. Keeping every cylinder firing removes the constant stress cycle that causes lifters to collapse over time.
Smooth, Full Power
No more shuddering, hesitation, or your truck hunting for the right gear every time you cruise. Full power is always there the instant you step on it, without any lag or delay.
Lifetime Warranty
Why ChooseFullFire?
Here's why drivers choose us over expensive AFM deletes.
Why ChooseFullFire?
Here's why drivers choose us over expensive AFM deletes.
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FullFire AFM Disabler
Original
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Others
(expensive & risky AFM deletes)
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Installs in 10 seconds
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No tools needed
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No trace on your ECU
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Won't void warranty
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Removes in seconds
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One-time $99 cost
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No engine teardown
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Money-back guarantee
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Trusted by 32,000+ Drivers
See what our customers are saying.
Jason R.,
33
Verified Buyer
Wish I had done it sooner. My truck stopped hunting for the right gears/RPM. This mod, plus using E85, has got me enjoying this truck all over again.
Robert S.,
48
Verified Buyer
No issues, no codes, it works as advertised. Easy install, or removal when it needs to be. Car responds better, no loss in fuel mileage. Money well spent!
Brad C.,
41
Verified Buyer
It was worth it. So far, no issues. Used to jump in the truck and start pounding buttons, now it's get in and go.
Marcus F.,
54
Verified Buyer
My truck feels stronger, shifts better, and there's no hesitation when towing. Haven't had a single issue since installing it.
Ryan P.,
28
Verified Buyer
After replacing the lifters at 100,000 miles, I decided never to risk AFM again. This device keeps my 2015 Silverado in V8 mode and runs smoother than ever.
Meggan M.,
35
Verified Buyer
The power being ready all the time makes it way less laggy to drive. The truck feels so much more responsive and the exhaust drone sound is gone too!
Money-Back Guarantee
Plug it in, and drive it for 30 days. If you don't feel the difference in how your vehicle runs, send it back for a full refund. No questions. No hassle. You're either 100% satisfied or you don't pay.
CLAIM NOW
100% Satisfaction
Fast Shipping
Easy Returns
Money-Back Guarantee
Plug it in, and drive it for 30 days. If you don't feel the difference in how your vehicle runs, send it back for a full refund. No questions. No hassle. You're either 100% satisfied or you don't pay.
CLAIM NOW
100% Satisfaction
Fast Shipping
Easy Returns
Frequently Asked Questions
Find answers to commonly asked questions.
Will this void my warranty?
+
It doesn't flash or reprogram anything — just unplug before service, and there's zero trace left behind.
How hard is it to install?
+
Plug it into your OBD-II port, start the truck, and drive — takes about 10 seconds, no tools required.
Will I lose gas mileage?
+
Most owners see zero to one MPG difference — many report no noticeable change in real-world driving.
Does it work on newer trucks with DFM?
+
It works on GM V6 and V8 vehicles with AFM or DFM — check our fitment guide for your year and model.
Will it throw a check engine light?
+
No — it communicates with your ECU properly, so you won't get any codes or warning lights.
Will it drain my battery if I leave it plugged in?
+
It draws less than one milliamp — your truck can sit for weeks without any battery issues whatsoever.
What about state emissions testing?
+
Unplug it, drive fifty to a hundred miles, pass your test, then plug it right back in.
What if it's not right for me?
+
We're confident you'll feel the difference on your first drive, but you're covered by a 30-day money-back guarantee either way.