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June 26, 2025
Performance truck enthusiasts, rejoice. After a brief pause, RAM’s supercharged V8 TRX is rumored to make its return later this year. While official details from RAM remain under wraps, insiders and industry experts suggest that a next-generation RAM TRX could arrive as soon as Fall 2025, and we are already preparing for its comeback.
As the automotive world eagerly awaits confirmation from Stellantis, one thing is certain: if RAM brings back its apex predator of the pickup world, the Hennessey team will be ready to make it even more powerful. The MAMMOTH 1000—Hennessey’s legendary upgrade for the outgoing TRX—set a high bar for high-performance trucks. And if the rumors prove true, Hennessey plans to raise it even higher.
A Brief History of the RAM TRX and Hennessey’s Legendary MAMMOTH 1000 Upgrade
When RAM first launched the TRX, it instantly captured the attention of performance truck fans across the globe. Equipped with a supercharged 6.2-liter Hellcat V8, the TRX delivered 702 horsepower straight from the factory—a number that was impressive at the time but still left room for more.
That’s where Hennessey came in. Known worldwide for taking fast vehicles and making them even faster, the team developed a limited-production upgrade package that transformed the already-insane TRX into an absolute monster: the MAMMOTH 1000.
What is the MAMMOTH 1000?
The Hennessey MAMMOTH 1000 TRX package was the ultimate expression of American performance. By upgrading the factory supercharger, installing a high-flow air induction system, improving fuel injectors and fuel lines, recalibrating engine management software, and adding stainless-steel long-tube headers, Hennessey was able to boost the TRX’s output to 1,012 horsepower and 969 lb-ft of torque.
That’s a 44% increase in power over stock, pushing the full-size RAM truck into supercar territory with a 0–60 mph time of just 3.2 seconds and a quarter-mile sprint in 11.4 seconds. And yes—those numbers are for a 6,000+ pound 4×4 truck.
The MAMMOTH 1000 upgrade wasn’t just about raw performance, either. Each build was available with visual enhancements like custom bumpers, LED lighting, leveling kits, and 37-inch off-road tires, giving the truck an unmistakably aggressive and capable stance. The result was a complete package that looked as good as it performed—on-road or off.
A Proven Success Story
The MAMMOTH 1000 wasn’t a niche upgrade—it was a runaway success. Hundreds of MAMMOTH TRX trucks were delivered to customers across the U.S. and internationally, from collectors and off-road enthusiasts to celebrities and entrepreneurs.
The truck received glowing reviews from outlets like MotorTrend, Car and Driver, and The Drive. Its combination of reliability, drivability, and unrelenting power made it one of Hennessey’s most successful performance packages of the modern era.
With every unit backed by a 3-year / 36,000-mile limited warranty, the MAMMOTH 1000 earned a reputation not just for outrageous performance—but for long-term dependability. That reputation has only fueled excitement for what’s next.
Hennessey is Ready for What’s Next
If RAM is truly preparing to bring back the TRX—or even introduce a new flagship performance truck—Hennessey is already laying the groundwork for the next evolution of the MAMMOTH.
Expect the next-gen MAMMOTH package to feature Hennessey’s trademark blend of massive horsepower, rugged design upgrades, and track-tested reliability. While the details of the base RAM truck remain a mystery, one thing is clear: Hennessey is ready to unleash another beast.
Stay Updated on the Next MAMMOTH
As RAM teases its next move, truck fans can sign up at HennesseyPerformance.com to receive updates on future MAMMOTH programs. Whether you’re looking to own one of the first next-gen builds or just want to follow the evolution of America’s most powerful trucks, Hennessey’s team will keep you in the loop.
In the meantime, check out the MAMMOTH 1000 upgrade, revisit the original TRX launch videos, and see what made the last generation so special. If history is any indicator, the best is yet to come.
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