Range Authorized Dealer

AFM/DFM Disabler

Name: AFM/DFM Disabler
Brand: Range
SKU: 128234181
Price: 295.01 USD
Availability: InStock

Part Number RA003B (128234181)

UPC: 860001618600

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

$295.01

In stockShips by 6th Nov

Description

The Range Technology AFM/DFM Disabler for GM vehicles is the perfect solution for drivers who want full control over their engine’s performance. This simple plug-and-play device disables GM’s Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems, allowing your engine to run in full cylinder mode at all times. No more frustrating transitions between V4 and V8 operation. Just smooth, consistent power whenever you need it. Designed for GM trucks, SUVs, and cars, the AFM/DFM Disabler helps eliminate issues like excessive oil consumption, lifter failure, and rough idle, giving you improved reliability and a stronger, more responsive driving experience.

Increase efficiency and performance with Range Technology AFM/DFM and Start-Stop OBDII controls. Range Technology specializes in advanced electronic solutions designed to address Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems found in modern GM V8 engines. Founded to solve real-world drivability and reliability concerns associated with cylinder deactivation, Range identified the need for a simple, effective way to keep engines operating in full V8 mode without invasive modifications or custom tuning. Range developed plug-and-play devices that interface directly with the vehicle’s onboard diagnostics system, intelligently preventing AFM and DFM activation while preserving factory calibrations, emissions systems, and vehicle safety features. These solutions help eliminate unwanted transitions, improve throttle response, enhance exhaust sound consistency, and support long-term engine reliability. Engineered specifically for GM V8 applications, Range products are continuously updated to support new model years and powertrain configurations.

Range developed plug-and-play devices that interface directly with the vehicle’s onboard diagnostics system, intelligently preventing AFM and DFM activation while preserving factory calibrations, emissions systems, and vehicle safety features. These solutions help eliminate unwanted transitions, improve throttle response, enhance exhaust sound consistency, and support long-term engine reliability. Engineered specifically for GM V8 applications, Range products are continuously updated to support new model years and powertrain configurations.

Fitment

This part fits the following vehicles.

Buick

2008-2020 Enclave
2017-2018 Envision
2005-2009, 2016-2019 LaCrosse
2005-2007 Rainier
2006-2007 Rendezvous
2006-2007 Terraza

Cadillac

2013-2019 ATS
2016-2018 CT6
2004-2019 CTS
2010-2020 Escalade
2010-2020 Escalade ESV
2010-2013 Escalade EXT
2004-2009 SRX
2005-2007 STS
2017-2019 XT5
2013-2019 XTS

Chevrolet

2007-2013 Avalanche
2020-2022 Blazer
2010-2024 Camaro
2011-2017 Caprice
2015-2020 Colorado
2012-2019 Corvette
2008-2009 Equinox
2014 Express 1500
2006-2009 Impala
2006-2012 Malibu
2006-2007 Monte Carlo
2007-2022 Silverado 1500
2019 Silverado 1500 LD
2022 Silverado 1500 LTD
2014-2017 SS
2014-2020 Suburban
2007-2014 Suburban 1500
2007-2013 Suburban 2500
2007-2020 Tahoe
2006-2008 Trailblazer
2006-2009 Uplander

GMC

2007-2008 Acadia
2015-2020 Canyon
2005-2009 Envoy
2010-2018 Sierra
2007-2022 Sierra 1500
2019, 2022 Sierra 1500 Limited
2007-2020 Yukon
2015-2020 Yukon XL
2014 Yukon XL 1500

Isuzu

2005-2006 Ascender

Pontiac

2007-2009 G6
2008-2009 G8
2005-2008 Grand Prix
2006-2009 Montana
2008-2009 Torrent

Saab

2005-2009 9-7x

Saturn

2007-2009 Aura
2007-2008 Outlook
2006-2007 Relay
2008-2010 Vue

Features & benefits

Range AFM/DFM Disabler keeps you in full power 100% of the time
Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system
Disables Auto Start/Stop
Blue LEDs
The Range AFM/DFM Disabler does not reprogram factory ECU
Works in hundreds of truck applications, 2007-2022, including 10-speed models.
Also supports 2007-2020 Tahoe, Yukon, Escalade, etc.
2010-2024 Camaro V8 models are supported
2014-2019 Corvette C7 models are supported
Leaves no trace, unplug it to return to factory settings
Virtually no battery draw
Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs
This device does not support the 2022.5+ Refresh model trucks or 2021+ SUVs
To confirm your 2022 model truck is compatible with this unit, check your VIN. The 12th digit in an early model must be a '4' or lower
Assembled in USA

Specifications

Color	Blue
Connector Gender	Male
Connector Quantity	1
Connector Type	OBDII
Country Of Origin	USA
Emission Code	7
Finish	Shiny
Fuel Type	Gas
Grade Type	Performance
Product Type	Tuner
Street Legal	Yes - Except CA
Terminal Gender	Male

Warranty

1 Year

Videos and guides

California residents

WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.