At Amazon, this AFM/DFM Disabler for GM V6 & V8 Engines for $66. It’s the best price we could find by $2. It plugs into the OBD-II port and leaves the factory ECU programming unchanged, so unplugging it returns the vehicle to stock settings. Compatibility varies by model, and the listing notes it does not fit 10-speed transmission models or 2022+ refresh models. Shipping is free. Buy Now at Amazon
Features
Plugs into the OBD-II port with no tools needed Keeps the engine in full V6 or V8 mode at all times Does not modify the factory ECU programming Unplugging it restores factory default settings Fits GM trucks and SUVs w/ 4.3L, 5.3L, 6.0L, and 6.2L engines Does not fit 10-speed transmission models or 2022+ refresh models
