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RA003 AFM/DFM Active Fuel Management Disabler Compatible with GM Vehicles V6 or V8


  • Compatible with GM Vehicles V6 or V8. Keep your car in full cylinder mode all the time.
  • Keep your engine stable when cycling between half-cylinder or full-cylinder operation.
  • Keep your factory ECU without causing damage to the vehicle. Easy to use, plug and play.
  • When the product is stable, it will keep a light on. If the product is not used for a long time, please take the product off to avoid running out of battery.
  • Please note: This product is not suitable for 2019+ 5.3L and 6.2 10-speed truck/SUV applications.


  • Brand: Greatus
  • Item Weight ‎1.76 ounces
  • Product Dimensions ‎2.5 x 2 x 0.8 inches