Eliminate AFM/DFM on your GM vehicle with the Range Technology AFM/DFM Disabler. Plug-and-play design keeps your engine in full power mode for smoother performance, better throttle response, and improved reliability.
Used but in excellent condition. Used on my Tahoe for 2 years.
More info :
https://www.rangetechnology.com/products/afm-dfm_disabler/parts/RA003G