#1
BEST-SELLING AFM DISABLER
GM Owners Top Choice

Excellent 4.92/5 (39,764 Reviews)

Marlow™ AFM/DFM Disabler

Made in the USA

Prevents lifter failure & engine shudder

Warranty Safe - Zero ECU modifications

Full V8 power locked 24/7

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Lifetime Warranty

If your vehicle experiences any issue or repair caused by V4 mode while using the Disabler, you’re protected for eligible repairs up to $8,000 for the lifetime of the device.


AFM/DFM Disabler
Excellent 4.9 | 1,422

AFM/DFM Disabler

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Vehicle Compatibility List

2025 upgraded version — fits 80+ GM models across Chevy, GMC, Cadillac, Buick,
Pontiac, Holden, and more.

Chevrolet 29 models
MODEL
ENGINE YEARS
Avalanche
5.3L V82007–2013
Avalanche
6.0L V82007–2009
Camaro
3.6L V62016–2024
Camaro
6.2L V82010–2024
Caprice PPV
6.0L V82011–2017
Colorado
3.6L V62015–2020
Corvette
6.2L V82012–2019
Equinox Sport
3.6L V62008–2009
Express 1500
5.3L V82014
Impala
3.9L V62007–2009
Impala
5.3L V82006–2009
Malibu
3.6L V62008–2012
Malibu
3.9L V62006–2007
Monte Carlo
5.3L V82006–2007
Silverado 1500
4.3L V62007–2021
Silverado 1500
5.3L V82007–2022
Silverado 1500
6.0L V82007–2013
Silverado 1500
6.2L V82009–2022
Silverado 1500 LD
5.3L V82019
SS
6.2L V82014–2017
Suburban
5.3L V82014–2020
Suburban
6.0L V82016–2018
Suburban
6.2L V82019–2020
Suburban 1500
5.3L V82007–2014
Suburban 1500
6.0L V82007–2013
Suburban 2500
6.0L V82007–2013
Tahoe
5.3L V82007–2020
Tahoe
6.2L V82018–2020
Trailblazer
5.3L V82006–2008
Uplander
3.9L V62006–2009
GMC IT WORKS WITH EVERY SINGLE GMC CAR!
Cadillac 12 models
MODEL
ENGINE YEARS
ATS
3.6L V62013–2019
CT6
3.6L V62016–2018
CT6 (non Hybrid)
3.0L V62016–2018
CTS
3.6L V62004–2019
CTS
6.0L V82006–2007
CTS
6.2L V82009–2019
Escalade / ESV
6.0/6.2L V82010–2020
Escalade ESV
6.2L V82010–2013
SRX
3.6L V62004–2009
STS
3.6L V62005–2007
XT5
3.6L V62017–2019
XTS
3.6L V62013–2019
Buick 7 models
MODEL
ENGINE YEARS
Enclave
3.6L V62008–2020
Envision
2.5L L42017–2018
LaCrosse
3.6L V62005–2019
LaCrosse
5.3L V82008–2009
Rainier
5.3L V82005–2007
Rendezvous
3.5/3.6L V62006–2007
Terraza
3.9L V62006–2007
Pontiac 9 models
MODEL
ENGINE YEARS
G6
3.6L V62008–2009
G6
3.9L V62007
G8
3.6L V62008–2009
G8
6.0L V82008–2009
G8
6.2L V82009
Grand Prix
3.8L V62007
Grand Prix
5.3L V82005–2008
Montana
3.9L V62006–2009
Torrent
3.6L V62008–2009
Holden 10 models
MODEL
ENGINE YEARS
VZ Calais SV6
3.6L V62006–2018
Commodore Wagon
3.6L V62006–2018
VZ Commodore Sedan
3.6L V62006–2018
Crewman / UTE
3.6L V62006–2018
9C1 Police Special
6.0L V82015–2018
Rodeo
3.6L V62006–2011
Colorado
3.6L V62006–2009
VE Commodore Omega
3.6L V62006–2009
WL Statesman
3.6L V62006–2017
WM Statesman / Caprice
3.6L V62006–2017
Saab, Saturn, Isuzu & Suzuki 8 models
MODEL
ENGINE YEARS
Saab Outlook XE
3.6L V62007–2008
Saab Relay
3.9L V62006–2008
Saab 9-7X
5.3L V82005–2009
Saturn Aura XR
3.6L V62007–2009
Saturn VUE XR / Red Line
3.9L V62008–2009
Isuzu Aura XR
3.6L V62007–2009
Isuzu Ascender
5.3L V82005–2009
Suzuki XL2
3.6L V62007–2009
It works with every single car. The vehicles above are the ones it was specifically designed for.

Install in 10 Seconds — No Tools Required

Plug it in. Blue light blinks. You're protected. That's it.

1

Find Your OBD-II Port

Located under your dashboard on the driver's side. It's a standard 16-pin port — every GM truck and SUV has one.

2

Plug In the NexDrive™ Disabler

Line it up with the port and push it in. No wiring, no programming, no professional skills needed.

⚡ Takes 10 seconds
3

Blue Light = Full V8 Protection

The Blue LED blinks to confirm it's active. Your engine is now locked in full-cylinder V8 mode — no more V4 drops, no more shudder, no more lifter stress.

Drive With Confidence

Keep it plugged in and forget about it. Your V8 stays a V8 — on hills, on highways, everywhere. Unplug anytime to return to factory settings instantly.

Your GM Engine Is Destroying Itself Every Time You Drive

GM's Active Fuel Management system 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. LT engines are notorious for this — it's not a matter of if, but when.

Engine Shudder

Feel that rough vibration when your truck shifts to 4-cylinder mode? That shudder isn't normal driving — it's your engine under stress every single time it cycles down.

$5,000+ Engine Repair

When lifters fail, you're looking at a full engine teardown or replacement. Truck owners pay thousands — or junk the engine entirely for $300 at a salvage yard.

$79
Cheap insurance vs. a $5,000+ engine replacement

Questions??

Will this damage my truck or modify the ECU? +

Absolutely not. The Marlow™ disabler never changes your original ECU programming. It's 100% safe for your vehicle. Simply unplug it and your truck returns to factory default settings instantly — no trace, no changes.

How Do I install it? Do I need tools or a mechanic? +

No tools and no mechanic needed. Find your OBD-Il port under the dashboard, plug the device in, and wait for the blue light to blink. The entire install takes about 10 seconds.

What does it actually do for my engine? +

If keeps your engine running in full V6/V8 mode at all times by disabling the

AFM/DFM cylinder deactivation system. This prevents the constant V8-to-V4 cycling that causes lifter wear, engine shudder, and rough acceleration. You get full power, smoother driving, and long-term engine protection.

Do I need to keep it plugged in While Driving? +

Yes — keep it plugged into the OBD-II port to maintain full-cylinder mode. It doesn't draw extra power from your vehicle. Think of it as set-it-and-forget-it protection.

What if I'm not satisfied? +

We offer a 100% satisfaction guarantee. If you have any quality issues or aren't happy with the product, contact us anytime for a full refund or free exchange.

No hassle, no questions.