Model	Year Range	Engine
Chevy Tahoe, Suburban, GMC Yukon, Cadillac Escalade	2021-2024	5.3L V8, 6.2L V8
Chevy Silverado 1500, GMC Sierra 1500 Refresh	2022.5-2024	5.3L V8, 6.2L V8

Product Overview

This innovative DFM disable module is designed to solve common issues caused by factory dynamic fuel management systems in late model GM V8 refresh trucks and SUVs. The device integrates seamlessly with your vehicle's ECM, disabling both DFM and engine auto start-stop functionality to keep your engine running on all cylinders at all times. Removal is quick and leaves no trace, allowing full return to stock configuration for dealer service visits. Warning: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.

Common Faults & Replacement Symptoms

Excessive engine oil consumption caused by frequent cylinder deactivation
Fouled spark plugs and premature lifter or valve train component failure
Unpleasant exhaust drone and inconsistent engine sound during cylinder deactivation
Hesitation on takeoff caused by auto start-stop system activation at stop signs
Unexpected loss of cabin comfort features (A/C, entertainment) during auto start-stop events
Reduced throttle response and inconsistent power delivery during acceleration

Ideal For

GM V8 truck and SUV owners who want consistent full power delivery
Drivers who prefer the classic V8 engine sound without cylinder deactivation drone
Vehicle owners looking to reduce long-term engine wear and avoid costly DFM-related repairs
Users who want to eliminate the inconvenience of factory auto start-stop systems

AFM DFM Disabler Module

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EGR Performance DFM Disable Module replacement for 5.3L 6.2L GM Truck 2021-2024 SUV 2022.5-2024