2025 Ram 1500 RHO First Look: Can This Six-Cylinder Truck Really Replace the TRX?
Ram’s new dune-jumping beast has a more efficient engine, redesigned suspension, better payload and towing, and a lower price, but without the Hellcat V-8 it still has something to prove.Hellcat. Hellcat. Hellcat. The incantation to summon Beetlejuice doesn’t seem to work for snarling V-8 engines despite their similar attitudes. With the official unveiling of the 2025 Ram 1500 RHO, it’s time to accept that not even black magic will save the 6.2-liter supercharged V-8 from its certain fate.
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Ram’s new top off-roader, the Ram High Output, is undeniably very similar to the TRX, but enough has changed that it deserves a fair shot to win us over without the shadow of the Hellcat looming over it. While we can’t forget the 702-hp Ram supertruck existed, if we accept that the RHO is its own thing rather than a TRX replacement, there’s an argument to be made that it could be a Ram’s best sport truck yet.
A Storm Is Brewing
If you’ve paid any attention to Ram’s refreshed 2025 light-duty lineup, you will be entirely unsurprised that the RHO uses a version of the new Hurricane inline-six engine under the hood. As in other high-dollar Ram 1500s, the RHO’s Hurricane High Output Straight-Six Turbo uses twin low-inertia Garrett turbos to force 540 horsepower and 521 lb-ft of torque out of 3.0 liters of displacement, but there are some changes specific to the RHO.
Air destined for the Hurricane’s combustion chambers enters through a water-draining hood scoop before being routed to a high-flow radial filter. The open-top air box design makes it easy to change the filter or shake out debris when you’re out tearing up the dunes. Ram engineers also designed an equal-length dual exhaust with an H-pipe in the middle that makes for more effective exhaust scavenging—as exhaust gas from one bank passes the H-pipe, it creates pressure differential that pulls the next pulse from the other bank. Oil pickups at the front and rear of the oil pan ensure that the lube keeps flowing when you’re running WOT up or down steep inclines.
Ram isn’t claiming new power ratings for the RHO but does say that there is a perceptible performance difference compared to other Hurricane engines. Capping off the RHO’s sport-tuned exhaust is a flow-actuated valve that opens at wide-open throttle to minimze restriction and maximize sound. Before you throw shade at the sound of a six-cylinder, this is no Pentastar V-6. A twin-turbo inline-six usually has a sound worth listening to, and it already sounds good in the other 1500 trucks.
The Hurricane H/O SST weighs 150 pounds less than the TRX’s Hellcat engine, and because of its smaller footprint, the Hurricane sits far enough behind the front axle to shift 30 pounds to the rear axle. That’s effectively 180 pounds off the front end, enough to reportedly improve handling with a more balanced truck from front to rear.


