Take full control of your engine's performance with AFM/DFM Disabler, a plug-and-play device designed to deactivate Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems in compatible GM vehicles. Simply connect it to your OBD-II port and keep all cylinders firing at all times, helping to reduce engine wear and deliver a smoother, more consistent driving experience. Compatible with a wide range of V6 and V8 GM engines, including 5.3L, 6.2L, 4.3L, and 3.6L configurations found in Chevy, GMC, Cadillac, and Buick vehicles. The device features a sleek matte black finish with a distinctive blue stripe and requires no assembly or professional installation. Compact in size at approximately 2.95" x 1.18" x 3.54", it fits discreetly under the dash. Backed by a 1-year warranty, this is a straightforward solution for drivers looking to keep their GM engine running on all cylinders without complex modifications.