2027 Polaris RZR Pro R Boost: 275 HP Reclaims the Horsepower Crown
Polaris has officially returned to the top of the production side-by-side horsepower race.
The new 2027 Polaris RZR Pro R Boost produces 275 horsepower from a turbocharged 2.0-liter ProStar Fury engine. That puts it ahead of the 250-horsepower Kawasaki Teryx H2 and the 240-horsepower Can-Am Maverick R.
However, this launch involves much more than a turbocharger and a larger number on the spec sheet.
Polaris redesigned the cooling system, CVT, transmission, front drive, half shafts, cabin airflow, and supporting electronics. In other words, the company did not simply build a 275-horsepower engine. It built a complete 275-horsepower system.
That distinction matters because extreme horsepower creates extreme heat and driveline load. Therefore, the strongest part of this launch may be the engineering surrounding the engine rather than the peak output itself.
| Spec | Pro R Boost |
|---|---|
| Horsepower | 275 hp |
| Engine | Turbo 2.0L |
| Fuel | 14.7 gal |
| Display | 10.4″ |
| Seats | 2 / 4 |
| MSRP | $49,999 |
What Is New on the 2027 Polaris RZR Pro R Boost?
The RZR Pro R Boost sits above the naturally aspirated Pro R as Polaris’ new high-performance halo machine.
Major confirmed features include:
- Turbocharged ProStar Fury 2.0-liter engine
- 275 horsepower at 7,000 rpm
- 215 lb-ft of torque available at 4,000 rpm
- Dual-radiator cooling design
- Rear-mounted engine radiator
- Roof-fed cooling scoop
- Larger CVT belt
- High-flow CVT cooling system
- Actively cooled transmission
- All-new transmission
- Upgraded front drive
- Strengthened half shafts
- 32-inch tires
- 14.7-gallon fuel tank on the two-seat model
- Six-point retractable harnesses
- 10.4-inch RIDE COMMAND touchscreen
- Integrated rear camera
- DYNAMIX DV suspension with FOX 3.0 Live Valve internal-bypass shocks
- Heated and ventilated Pro Climate seats
- Rockford Fosgate Stage 4 audio on the Ultimate trim
U.S. MSRP starts at $49,999 for the two-seat Pro R Boost Ultimate before destination, dealer fees, taxes, and optional accessories. Polaris also offers both two-seat and four-seat configurations.
For context, the new Boost does not erase the existing Pro R. Instead, it expands the top of the lineup. The naturally aspirated machine remains an option for riders who prefer linear power and less turbocharged complexity.
That two-tier approach gives Polaris buyers a real choice rather than forcing every Pro R customer into the most expensive model.
Key Takeaways
- Polaris reclaims the horsepower crown.
- New cooling system redesigned around turbocharging.
- Stronger driveline throughout.
- Premium interior technology.
- Existing round-bar Dirtbag accessories remain compatible.
A Turbocharged 2.0-Liter Engine With 275 Horsepower
The ProStar Fury engine now uses forced induction to reach 275 horsepower at 7,000 rpm.
Polaris also says the engine produces 215 lb-ft of torque at only 4,000 rpm. Some technical launch coverage reports a higher peak torque figure later in the rev range. However, Polaris’ own consumer page emphasizes the torque already available at 4,000 rpm, which better explains how the machine should feel in normal use.
That broad torque delivery should matter more than a single peak figure.
A desert UTV does not spend every second at redline. Riders need immediate response when climbing dunes, accelerating through deep sand, recovering speed after a corner, or carrying momentum through rough terrain.
Therefore, the lower-rpm torque curve may make the Pro R Boost feel stronger more often, not just faster during a full-throttle horsepower run.
Polaris also claims the machine can maintain its output at elevations up to 10,000 feet. Turbocharging naturally helps compensate for thinner air, although actual performance will still depend on temperature, load, fuel, and operating conditions.
Polaris Retakes the Production Horsepower Crown
The horsepower hierarchy now looks like this:
| Machine | Claimed Horsepower | Engine | Transmission |
|---|---|---|---|
| 2027 Polaris RZR Pro R Boost | 275 hp | Turbocharged 2.0L twin-cylinder | CVT |
| Kawasaki Teryx H2 | 250 hp | Supercharged 999cc inline-four | CVT |
| Can-Am Maverick R | 240 hp | Turbocharged 999cc triple | 7-speed DCT |
| Polaris RZR Pro R | 225 hp | Naturally aspirated 2.0L twin-cylinder | CVT |
On horsepower alone, Polaris wins.
Still, horsepower does not settle the complete comparison. Each competitor delivers power differently.
The Kawasaki uses a high-revving supercharged inline-four derived from its H2 engineering family. Meanwhile, Can-Am pairs its turbocharged triple-cylinder engine with a seven-speed dual-clutch transmission.
Polaris keeps the familiar CVT format but backs it with a larger belt, revised cooling, stronger clutching, and an entirely new transmission system.
As a result, the real buyer decision involves power delivery, transmission feel, passenger capacity, suspension, price, intended terrain, and long-term ownership priorities.
Engineering Beyond Horsepower
Adding turbocharging to an existing platform sounds simple in a headline.
In practice, it creates a chain reaction.
More cylinder pressure creates more torque. More torque creates more driveline stress. In addition, higher power creates more heat in the engine, intake charge, clutching, belt, transmission, and cabin.
Polaris appears to have followed that chain through the entire vehicle.
The result includes:
- A new engine cooling layout
- Dedicated intercooler cooling
- Active transmission cooling
- Larger clutching components
- A larger CVT belt
- Revised airflow
- A new transmission
- A stronger front drive
- Reinforced half shafts
This is why the Pro R Boost should not be described as a Pro R with a turbo bolted onto it.
The supporting systems are part of the product.
A Dual-Radiator Cooling System Built for Extreme Heat
Cooling appears to have dictated much of the new architecture.
The Pro R Boost moves the main engine radiator behind the occupants. A roof scoop feeds that rear cooling package with outside air. Meanwhile, the front cooling area supports other heat exchangers, including the intercooler and transmission cooling system.
That approach serves two purposes.
First, it helps maintain engine and drivetrain temperatures under sustained load. Second, it moves a major source of radiant heat away from the driver and passenger footwells.
Polaris also added fresh-air cabin intakes and 360-degree rotating vents. Therefore, the airflow system supports both vehicle performance and occupant comfort.
Polaris claims the system can maintain full performance in ambient temperatures reaching 115 degrees Fahrenheit. That claim will need independent testing. Still, the scope of the cooling redesign shows how seriously Polaris treated heat management.
Roof Accessories Must Work With the Cooling System
The roof scoop changes how accessories should be evaluated.
In Polaris’ official accessory walkaround, the company highlights a RIGID roof-light system that integrates around the scoop without blocking airflow. The system combines a curved 20-inch center light bar with four adjustable side pods.
That detail is easy to overlook. However, it reveals an important ownership consideration.
On the Pro R Boost, roof accessories cannot simply occupy any open space. Owners need to protect the airflow path that supports the rear-mounted radiator.
The same principle applies to aftermarket roofs, light bars, storage, spare tires, and cargo systems. Any accessory mounted near the scoop or rear cooling path should preserve the airflow Polaris designed into the machine.
A Larger CVT Belt and More Aggressive Clutch Cooling
CVT heat becomes a serious issue as horsepower rises.
Polaris responded with a larger belt, high-capacity clutching, increased airflow, and a 48-curved-fin cooling design. Technical launch coverage also reports a larger secondary clutch and multiple cooling ducts directing air through the CVT system.
Those changes suggest Polaris identified belt and clutch temperature as a major durability limit.
That makes sense. A CVT transfers engine torque through friction between the belt and clutch sheaves. As torque, vehicle weight, and sustained throttle increase, so does the thermal load.
Therefore, belt cooling is not a minor supporting feature. It is essential to delivering repeatable performance.
Real-world testing will eventually show whether the new system reduces belt temperature and extends service life. For now, the engineering changes indicate Polaris did not treat the CVT as an afterthought.
An All-New Transmission and Stronger Front Drive
Polaris also developed an all-new transmission for the Pro R Boost.
The company says the transmission creates a more direct connection to the upgraded front drive. In addition, strengthened half shafts reinforce the driveline under heavy load.
Technical coverage suggests Polaris also strengthened differential components, bearings, splines, ring-and-pinion parts, mounts, and the prop-shaft connection.
That work matters because peak engine output tells only part of the story. A machine must transfer torque through the clutching, transmission, prop shaft, differential, axles, hubs, and tires.
The weakest point controls the entire system.
By reinforcing the load path, Polaris is trying to make 275 horsepower usable rather than decorative. Long-term owner experience will determine whether it succeeded.
Suspension and Chassis
The Pro R Boost Ultimate uses DYNAMIX DV suspension with FOX 3.0 Live Valve X2 internal-bypass shocks.
Polaris has not framed this launch around a complete suspension-platform replacement. Instead, the company appears to have refined the existing wide-open-terrain formula around the added power, weight, and cooling hardware.
The machine continues with 32-inch tires and the broad, planted stance associated with the Pro R platform.
However, the added performance changes how the suspension will be used.
More acceleration means riders reach rough terrain faster. In addition, higher corner-entry speed increases chassis load. Harder impacts also transmit more energy through suspension components, the roll cage, and anything mounted to it.
Therefore, durability and stability matter beyond the engine bay.
The Boost needs suspension control that can manage repeated high-speed hits rather than simply absorbing one dramatic landing for a launch video.
Until independent testers drive production machines, we should avoid declaring that the suspension is better than the Kawasaki or Can-Am systems. Still, DYNAMIX DV gives Polaris a sophisticated starting point for balancing body control, comfort, and terrain response.
Exterior Design and Forward Visibility
The Pro R Boost keeps the recognizable RZR shape, although Polaris sharpened the presentation.
The front fascia uses the familiar fang-style lighting signature. Muscular fenders, strong door lines, color-matched cage sections, beadlock wheels, suspension springs, and roof details create a more unified appearance.
More importantly, Polaris continues to use narrow A-pillar geometry.
That design helps preserve forward sightlines around the cage. On a machine designed for high-speed desert use, clear forward visibility matters because terrain arrives quickly.
However, narrow A-pillars do not eliminate the need for rearward visibility.
The Pro R platform remains wide through the body and rear fenders. Therefore, a side mirror must extend far enough outward to see around the machine without blocking the driver’s forward view.
We explore that geometry in greater detail in our guide to Polaris RZR accessories and side mirrors.
Interior and Technology
The Pro R Boost pushes the RZR cabin farther into premium-vehicle territory.
The Ultimate trim includes a 10.4-inch touchscreen powered by RIDE COMMAND. The system includes mapping, vehicle information, connectivity features, and an integrated rear camera.
Polaris also includes:
- Heated and ventilated seats
- Telescoping steering wheel
- Steering-wheel controls
- Six-point retractable harnesses
- Aluminum roof
- Rockford Fosgate Stage 4 audio
- RIDE COMMAND+ connected services
These features do not make the vehicle faster. However, they affect how owners use it.
High-performance UTVs now spend long days in dunes, deserts, and destination riding areas. Therefore, seat comfort, heat control, visibility, navigation, and communication can matter as much as another suspension clicker.
The 10.4-inch display also gives Polaris a clear technology advantage over machines that still rely on smaller or more basic instrumentation.
Polaris’ Factory Accessory Strategy
Polaris developed a broad accessory system around the Pro R Boost.
Factory-highlighted options include:
- Carbon-fiber hood and trim
- RIGID roof lighting
- Cast-aluminum A-pillar light mounts
- Additional Rockford Fosgate subwoofer
- Pivoting spare-tire carrier
- Rear tailgate
- Two-gallon fuel transport kit
- Updated whip flag
- Smart sway-bar links
- MPI steering wheel
- Vehicle storage cover
The accessory walkaround confirms that many previous Pro R accessories continue to fit the Pro R Boost. That carryover strongly suggests Polaris preserved the familiar mounting ecosystem rather than forcing owners to start from zero.
It also reinforces the idea that Polaris sees the Boost as a complete platform.
Owners can build lighting, audio, cargo, fuel, safety, and suspension systems around the vehicle.
Compatible Dirtbag Brands Accessories for the Pro R Boost
The Pro R Boost continues to use the familiar round roll-bar architecture associated with the Polaris RZR platform.
As a result, Dirtbag Brands’ existing round-bar accessories fit naturally into the ownership picture.
Our complete Polaris RZR accessories category includes mirrors and mounting systems built for RZR cages ranging from 1.75 to 2 inches.
IronSight Mirror-01
The IronSight Mirror-01 fits round roll bars from 1.75 to 2 inches, including the Polaris RZR platform.
Mirror stability becomes increasingly important as machine capability rises.
At higher speeds, riders hit washboard, whoops, ruts, and square-edged terrain with more energy. Those impacts travel through the chassis and into every cage-mounted accessory.
Many traditional UTV mirrors rely on a friction-style ball-and-socket joint. As vibration cycles accumulate, the joint can move, sag, or require repeated adjustment.
Mirror-01 uses a billet clamp and mechanically indexed retention system designed to reduce dependence on friction alone.
That difference matters on a 275-horsepower machine. A mirror that looks acceptable in the garage still needs to hold its adjustment when the vehicle enters rough terrain at speed.
The mirror’s outward extension also helps the driver see around the RZR’s wide rear bodywork. Meanwhile, its compact profile works with the narrow A-pillar layout instead of turning the mirror into another forward-view obstruction.
For a deeper technical explanation, see our UTV Mirror Engineering Guide and our analysis of form closure versus friction in UTV mirrors.
Owners can also verify other applications through the UTV Mirror Fitment Guide.
Billet Whip Mount
Dune and open-desert riders often need a whip or flag for visibility.
The Pro R Boost accessory presentation includes an updated Polaris whip flag. However, the flag still needs a solid structural mounting point.
Dirtbag Brands offers billet UTV whip mounts for round roll bars. The clamp secures to the cage and provides a stable base for common whip systems.
At high speeds, a whip creates leverage at its mounting point. Therefore, clamp strength and resistance to rotation matter as much as the pole itself.
Billet Rotopax Mount
Polaris offers its own two-gallon fuel transport system for the Pro R Boost.
Riders who prefer a modular Rotopax setup can use a billet UTV Rotopax mount on suitable round tubing.
Extra fuel can extend range in remote terrain. However, placement matters on the Boost because the rear cooling system needs open airflow.
Owners should choose a location that keeps the container secure without blocking the roof-fed radiator path, rear bodywork, or service access.
Billet Fire Extinguisher Mount
A fire extinguisher is not exciting until it is desperately needed.
High-performance machines combine fuel, exhaust heat, electrical systems, turbocharger heat, and remote riding conditions. Therefore, quick access matters.
Dirtbag Brands’ UTV fire extinguisher mounts provide a structural mounting solution for compatible round roll bars.
The best location should remain accessible from outside the vehicle while avoiding interference with passengers, harnesses, cargo, and cooling airflow.
Pro R Boost vs Kawasaki Teryx H2
The Kawasaki Teryx H2 reset the production horsepower benchmark with 250 horsepower.
Kawasaki uses a 999cc supercharged inline-four derived from the H2 family. It is a high-revving engine with a distinct character and strong mechanical identity.
The Polaris answers with 275 horsepower from a much larger 2.0-liter turbocharged twin.
On paper, the Polaris has:
- 25 more horsepower
- More low-rpm torque
- A larger-displacement engine
- Advanced RIDE COMMAND integration
- Heated and ventilated seats
- Two-seat and four-seat options
However, the Kawasaki offers four-seat and five-seat layouts from launch. It may appeal more strongly to families who want high performance without giving up passenger capacity.
The Teryx H2 also starts at a substantially lower U.S. price than the Pro R Boost.
Therefore, the Kawasaki remains relevant even after losing the horsepower crown. Polaris wins the output battle, but Kawasaki may win for buyers prioritizing passenger space and value.
Kawasaki answered with the shorter 2027 Teryx H2 two-seater, which keeps 250 supercharged horsepower while focusing more heavily on agility and electronic chassis control.
Pro R Boost vs Can-Am Maverick R
The Can-Am Maverick R takes a different approach.
Its 999cc turbocharged triple makes 240 horsepower. Instead of a CVT, Can-Am uses a seven-speed dual-clutch transmission.
That DCT creates direct gear changes and a different connection between the driver and powertrain. It also removes the traditional CVT belt from the primary power-transfer equation.
The Polaris counters with:
- 35 more horsepower
- Larger engine displacement
- Broad low-rpm torque
- Advanced thermal management
- Familiar CVT behavior
- RIDE COMMAND technology
- Heated and ventilated seating
The Can-Am still has an important advantage for drivers who prefer defined gear changes and direct transmission engagement.
Therefore, the comparison is not simply 275 versus 240.
The Maverick R feels more like a geared performance vehicle. The Pro R Boost remains rooted in the CVT side-by-side experience, although Polaris has heavily reworked that system to manage the output.
Buyers should decide whether they value maximum horsepower and adaptive Polaris technology or the mechanical feel of the Can-Am DCT.
Pro R Boost vs the Naturally Aspirated Pro R
The standard Pro R remains one of the most interesting alternatives to the Boost.
Its naturally aspirated 2.0-liter engine produces 225 horsepower. Therefore, buyers give up 50 horsepower compared with the Boost.
However, they also avoid some turbocharger complexity.
The naturally aspirated Pro R may suit riders who value:
- Linear throttle response
- Simpler thermal management
- Lower purchase price
- Proven engine character
- Less concern about winning the horsepower race
The Boost is the obvious choice for buyers chasing maximum output. Still, not every rider needs it.
For historical context, our coverage of the Polaris RZR Pro R Ultra Edition shows how Polaris was already moving the platform toward smarter suspension, higher technology, and premium equipment before adding turbocharged power.
Who Is the 2027 Polaris RZR Pro R Boost For?
The Pro R Boost is designed primarily for riders who operate in wide-open terrain.
Its ideal environments include:
- Sand dunes
- High-speed desert routes
- Open recreation areas
- Long whoop sections
- Fast trail systems with room to use the power
It also suits buyers who want the latest technology and do not mind paying for it.
The Boost may not be the best choice for:
- Tight wooded trails
- Budget-focused buyers
- Owners who rarely use full throttle
- Riders who prefer mechanical simplicity
- Families who need five seats
- Buyers who prioritize towing or work capacity
A 275-horsepower UTV is an extraordinary machine. However, its value depends on where and how it will be used.
For many riders, the standard Pro R, Maverick R, or Teryx H2 may provide a better balance.
For the buyer who wants the highest-output production sport UTV available, the Pro R Boost now owns that title.
Final Thoughts
Polaris has reclaimed the horsepower crown, but the 275-horsepower headline tells only part of the story.
The new turbocharged engine required changes throughout the vehicle.
Polaris redesigned the cooling layout, moved the engine radiator rearward, added active transmission cooling, increased CVT capacity, strengthened the front drive, reinforced the half shafts, and improved cabin airflow.
Those changes reveal the real engineering challenge.
Creating more horsepower is one problem. Delivering that power repeatedly in heat, elevation, sand, and rough terrain is another.
The Pro R Boost appears to address both.
However, it also enters the market at a premium price. Furthermore, independent testing still needs to evaluate heat control, belt life, driveline durability, suspension behavior, and real-world acceleration.
For now, one fact is clear.
Polaris did not answer Kawasaki with a mild update.
It responded with the most powerful production sport side-by-side yet.
Frequently Asked Questions
The 2027 Polaris RZR Pro R Boost produces a claimed 275 horsepower from its turbocharged 2.0-liter ProStar Fury engine, making it the most powerful production sport UTV Polaris has ever built.
The Pro R Boost introduces a turbocharged 275-horsepower engine, an all-new transmission, strengthened front drive and half shafts, a dual-radiator cooling system, rear-mounted engine radiator, upgraded CVT with a larger belt and improved cooling, DYNAMIX DV suspension with FOX Live Valve shocks, a 10.4-inch RIDE COMMAND display, and heated and ventilated seats on Ultimate models.
The Pro R Boost produces 275 horsepower, compared to the Kawasaki Teryx H2’s 250 horsepower. Polaris focuses on maximum desert performance with a turbocharged 2.0-liter engine and advanced cooling, while Kawasaki combines a supercharged inline-four with four- and five-seat configurations that appeal to riders needing more passenger capacity.
Yes. The 2027 Polaris RZR Pro R Boost retains the familiar round roll-bar architecture used on previous Pro R models. Dirtbag Brands’ IronSight Mirror-01, Billet Whip Mount, Billet Rotopax Mount, and Billet Fire Extinguisher Mount are designed for compatible round roll bars and continue to fit the Pro R platform.
Higher horsepower allows riders to carry more speed through rough terrain, increasing the vibration and impact loads transmitted through the roll cage. A stable mirror system that maintains its adjustment improves rearward visibility and reduces the need for constant readjustment during aggressive riding.
The Pro R Boost is best suited for riders who want industry-leading horsepower, advanced suspension technology, premium interior features, and exceptional high-speed desert performance. Buyers who spend most of their time in open terrain and want Polaris’ flagship sport UTV will benefit the most, while those riding tighter trails or seeking a lower price point may find the naturally aspirated Pro R or other models better suited to their needs.
Editorial & Media Disclaimer
This article contains independent editorial analysis by Dirtbag Brands based on publicly available information released by Polaris at launch. Specifications, features, pricing, and availability are subject to change by the manufacturer without notice.
Vehicle photographs included in this article are sourced from Polaris’ official product media, launch materials, and publicly available Polaris YouTube videos for the purpose of product news reporting, technical commentary, and review. All trademarks, product names, logos, and images remain the property of their respective owners.
Dirtbag Brands is an independent aftermarket manufacturer and is not affiliated with, endorsed by, or sponsored by Polaris Industries Inc.
This article will be updated as additional specifications, independent testing, and long-term ownership information become available.
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