Owners of brand-new 2026 GM trucks with the 5.3-liter or 6.2-liter V8 are already discovering the frustrations of Dynamic Fuel Management and Auto Start/Stop. Range Technology, part of the Holley family, has just announced a proven solution. Their popular RA007 Active Fuel Management Disable Module is now fully compatible with the 2026 “Refresh” Silverado and Sierra 1500 models.

The RA007 is already known as the go-to fix for this problem on older models. It’s a simple plug-in device that stops the annoying cylinder deactivation (DFM) and the auto start/stop system. The result is a smoother, more responsive driving experience with full V8 power all the time. The big breakthrough here is that Range Technology has updated the firmware to work with GM’s advanced “Global B” electrical architecture, making it the first plug-and-play solution engineered for these brand-new 2026 trucks.

The most important feature for anyone with a 2026 model is the warranty. The RA007 connects inline at the ECM, requires no tuning or ECU flashing, and is fully reversible. It leaves “zero digital trace,” allowing owners to enjoy full-time V8 power while maintaining complete factory warranty integrity. Mike Litsch, Senior Product Manager at Range Technology, said, “The RA007 has earned its reputation as the simplest, safest path to real V8 performance. With our expanded 2026 compatibility, we’re reaffirming our commitment to the modern GM truck community—delivering plug-and-play reliability with zero trace and full warranty confidence.”

This isn’t just a gimmick. Range Technology said they validated the module through more than 8,000 hours of lab and road testing and over 100,000 miles of real-world use, including heavy towing, stop-and-go traffic, and mountain climbs. It’s EPA-compliant in 49 states (CARB approval is pending). For new 2026 Silverado and Sierra owners who just want their V8 to be a V8 all the time, the RA007 is the simple, warranty-safe solution they’ve been waiting for.
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