Range - AFM/DFM Disabler - V6 & V8 GM
The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.

Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns.

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.
The power and control you need in any situation.
The Range AFM/DFM Disabler does not reprogram your factory ECU.
Leaves no trace. Unplug it to return to factory settings
Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.

***The AFM/DFM Disabler is NOT currently compatible with 2019+ 5.3L 10-speed or 6.2L 10-speed models.***


Part # LED Color Price
003RA003B Blue $230.95 
003RA003G Green $230.95 
003RA003R Red $230.95 

Lefthander Chassis, Inc.
13750 Metric Rd. Roscoe, IL 61073
Phone (815) 389-9999   Fax (800) 779-6461
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Office Hours:
8:30am - 5:00pm CST
Counter Hours:
Mon-Fri 9:00am - 5:00pm CST