The Sea-Doo RXP-X performance flagship has had a 325-horsepower boost thanks to a significant engine overhaul, including an all-new supercharger.
Sea-Doo claims the 2024 version of the RXP-X has the highest power-to-weight ratio in the Jet Ski world and can accelerate to 60mph (just shy of 100km/h, at 96kmh) in about 3.4 seconds.
Our real-world testing revealed a different acceleration result – which we list later in this review – but this is still an incredibly fast machine.
The US version of the Sea-Doo RXP-X 325 has a speed limiter set to about 112kmh or 70mph, whereas the unrestricted RS version sold in Australia tops out close to 120kmh or 75 mph.
2024 Sea-Doo RXP-X 325 Pricing
In Australia, the 2024 Sea-Doo RXP-X325 RS costs from $32,464 excluding trailer and registration.
In the US, the 2024 Sea-Doo RXP-X325 costs from $19,199 excluding trailer and registration.
It’s worth noting the US version is not as well equipped as the examples sold in Australia, which explains some of the price difference.
Plus currency exchange rates and shipping costs play a big role in the price gap.
Nevertheless, the 2024 Sea-Doo RXP-X 325 RS is one of a handful of supercharged Jet Skis that eclipse the $30,000 price barrier.
Two colour schemes are available for 2024.
Check the Sea-Doo website in your country for the latest prices and standard features. 
2024 Sea-Doo RXP-X 325 feature highlights
Key changes for 2024 include a new supercharger, new fuel pump, new electronic control module, new injectors, new air intake, new exhaust manifold and an O2 sensor to more accurately measure the fuel mixture.
The 2024 RXP-X325 also gains the carbon-fibre hood cover and adjustable steering damper set-up that debuted with the 2023 Sea-Doo RXP-X300 Apex limited edition unveiled by Australian Formula One ace Daniel Ricciardo.
Also part of the package: high-performance ‘X’ sponsons (for sharper reflexes and tighter turns), a polished impeller, an extended trim system and launch control for optimum acceleration.
It’s equipped with a “scoop grate” in the belly to make sure the jet pump gets fed plenty of water, and doesn’t cavitate on take-off.
Australian examples of the RXP-X 325 RS come with a 7.8-inch VIP digital instrument display, factory-fitted speakers, and a USB charge port in the waterproof phone-holder compartment inside the centre console.
These standard items in Australia are optional in the US.
Key specifications for the 2024 Sea-Doo RXP-X 325 RS are as follows.
2024 Sea-Doo RXP-X 325 RS Australian details:
Engine: Supercharged 1630cc three-cylinder Rotax engine
Power: 325 horsepower
Dry weight: 362kg with sound system
Length: 331.8 cm
Width: 125 cm
Height: 111 cm
Rider capacity: 2 (182kg total)
Fuel tank: 70 litres
Bow storage: 143 litres
Centre console storage: 9.7 litres
Warranty: Two years
2024 Sea-Doo RXP-X 325 US details:
Engine: Supercharged 1630cc three-cylinder Rotax engine
Power: 325 horsepower
Dry weight: 778lb (798lb with sound system)
Length: 130.6-in
Width: 49.2-in
Height: 44-in
Rider capacity: 2 (400lb total)
Fuel tank: 18.5 US gallons
Bow storage: 38 US gallons
Centre console storage: 2.56 US gallons
Warranty: One year
What’s the 2024 Sea-Doo RXP-X 325 RS like to ride?
Although there is a lot to get excited about here, the differences in acceleration and top speed between the previous 300 horsepower version and the latest 325 horsepower model are incremental gains.
It’s worth noting the previous RXP-X 300 was already the quickest Jet Ski of its era. So any improvement is an engineering feat.
Sea-Doo has definitely taken the RXP-X up a notch with significant engine changes that make it breathe better.
It feels a lot stronger in the middle of the rev range and doesn’t get an asthma attack at the top end either. It feels like the power is never ending.
The result is a much more responsive engine and one that feels tireless all the way to its top speed.
This is a seriously quick machine, no matter how you measure it.
Before we get to the performance times, it’s worth highlighting some of the other features.
The steering damper may have initially been dismissed as a gimmick, but we are big fans of this device.
In fact, it makes the sharp handling of the RXP-X much more manageable.
The sponsons are so aggressive and dig into the water in tight turns so well, that without the adjustable steering damper, the rider risks being ejected.
Making the steering heavier at the turn of a dial – and providing more resistance to the steering input from the rider – means the RXP-X is much more linear in tight turns.
You still need to hold on tight, and lock your knees into position to stop yourself from being ejected.
The steering damper is a game-changer and gives the craft a more natural turning feel even when the rider is experiencing high G-forces when cornering sharply.
The other impressive aspect of the RXP-X 325 is the design of the new generation hull which launched a few years ago.
The bow and the sponsons cut through chop with incredible accuracy, and much better than would normally be expected from a lightweight performance ski.
At Watercraft Zone we hope, in the future, Sea-Doo applies the fundamentals of the RXP’s hull design to its ST3 range of skis – such as the RXT-X, GTX Limited, Fish Pro and Explorer Pro – which are due to be replaced in the coming years.
Here’s hoping Sea-Doo realises what a gem it has on its hands with the current generation RXP hull.
While ST3-based Sea-Doo models suffer from bow hunt in choppy conditions, the RXP-X 325 crushes through rough chop like an army tank.
And then, incredibly, it combines this capability with the cornering reflexes of a Formula One car.
It might sound like an exaggeration but the RXP-X hull really is that good.
There is one important aspect to note, however.
The RXP-X is not suited to riders who prefer to ride while crouching or standing up.
The handlebars are not adjustable, which makes it uncomfortable to lean down when riding in rough conditions. When standing it feels like you’re about to go over the handlebars.
Sitting down gives the rider better steering and throttle control.
However, this means your body is taking more of a battering, so you may need to adjust your riding style.
One other note on comfort and convenience.
The glovebox lid won’t open when the handlebar is turned at full lock, or conversely if you turn the handlebar – perhaps when you’re idling – it will slam the centre console lid shut.
A minor observation but one worth noting.
Although the RXP-X has a choice of Eco and Normal modes – as well as Sport and Launch modes – we would say this really is a ski for advanced, experienced riders.
First timers to supercharged power might consider the Sea-Doo RXT-325, which has the same 325-horsepower engine but installed in a larger, heavier platform than the RXP-X.
The RXT-X is a three-seater rather than a two-seater, has height adjustable handlebars, has a more accessible and more user-friendly main storage compartment, and a longer list of accessories.
As with other Sea-Doos, (and Yamaha WaveRunners) the reverse trigger is on the left and the accelerator trigger is on the right.
There is also cruise control, and adjustable trim to raise or lower the nose depending on conditions.
How fast is the 2024 Sea-Doo RXP-X 325 RS?
This is the fastest Jet Ski we’ve tested at Watercraft Zone.
As always, our acceleration times are an average of four runs – two in each direction – in this instance with a rider weighing 100kg or 220lb.
We tested in flat water conditions – not ocean chop – to ensure we could extract the best performance.
Wind speed, wind direction, air temperature and the water current can affect the results, which is why we took an average of two directions rather than taking advantage of a tailwind or a favourable current.
The example tested had just been run-in, with more than five hours on the clock, and the ambient temperature on the day was a sweltering 36 degrees Celsius or 97 degrees Fahrenheit.
We used launch control for each run, which initially keeps the nose down so the jet pump gets maximum traction at the start, but then the trim automatically adjusts to bring the nose up as the speed climbs, so there is less resistance at higher speeds.
Our VBox timing device was programmed to start from 5kmh or 3mph, rather than zero, because the slightest movement triggers the device.
Here are the numbers.
2024 Sea-Doo RXP-X 325 RS acceleration in kmh
- 5 to 40kmh 1.25
- 5 to 50kmh 1.61
- 5 to 60kmh 2.00
- 5 to 70kmh 2.48
- 5 to 80kmh 3.00
- 5 to 90kmh 3.70
- 5 to 100kmh 4.70
- 5 to 110kmh 6.57
- Top speed average 118.5kmh
- Nudged 120.1kmh
2024 Sea-Doo RXP-X 325 RS acceleration in mph
- 3 to 25mph 1.25
- 3 to 31mph 1.61
- 3 to 37mph 2.00
- 3 to 43mph 2.48
- 3 to 50mph 3.00
- 3 to 56mph 3.70
- 3 to 62mph 4.70
- 3 to 68mph 6.57
- Top speed average 73.6mph
- Nudged 74.6mph
The figures show the 2024 Sea-Doo RXP-X 325 RS launches hard and fast, hitting 40kmh or 25mph in just 1.25 seconds, on the way to 100kmh or 62mph in 4.7 seconds.
The average top speed of the RXP-X 325 RS over four runs, two in each direction, was 118.5kmh or 73.6mph – though on one run we did nudge 120.1kmh or 74.6mph on our GPS.
Others have recorded slightly higher top speeds in cooler conditions and with lighter riders, but this is what we got on the day – and these numbers are repeatable even in adverse conditions.
This RXP-X was in stock standard condition, straight out of the box, with no modifications whatsoever.
Other performance times you might see online could be for craft fitted with a SCOM, or speed control override mode.
Maximum revs on the RXP-X 325 when we tested it were 8000 to 8100rpm.
The owner’s manual lists peak revs at 8250rpm.
Sea-Doo says the RXP-X 325 is usually run-in after 3 to 5 hours. The example tested had more than 5 hours on the clock.
Here’s how some other supercharged Jet Skis compare based on our recent VBox testing:
- Sea-Doo RXP-X 325 RS
5 to 100kmh/62mph: 4.70 seconds - Sea-Doo GTR-X 300
5 to 100kmh/62mph: 5.14 seconds - Kawasaki Ultra 310X
5 to 100kmh/62mph: 5.23 seconds - Yamaha FX SVHO
5 to 100kmh/62mph: 5.33 seconds
Maximum revs on the RXP-X 325 is 8250rpm – once the engine is run-in – versus 8000rpm on the Sea-Doo GTR-X 300, 7800rpm on the Yamaha FX SVHO and the 7400rpm peak we saw on the Kawasaki Ultra 310 when we tested it.
As the acceleration figures show, even a stock RXP-X 325 is the fastest Jet Ski on the market today.
How much fuel does the 2024 Sea-Doo RXP-X 325 RS use?
Our testing showed it is a thirsty machine, which is understandable given the performance.
Moving this fast through the water requires a certain amount of energy.
Our preliminary testing showed the Sea-Doo RXP-X325 – with its supercharged 1630cc three-cylinder engine – consumed fuel at a rate of 65L/100km (or about 3.6 miles per gallon).
This makes it as thirsty as the supercharged 1.5-litre four-cylinder Kawasaki Ultra 310 in our testing.
And about 10 per cent thirstier than the Yamaha FX SVHO powered by a supercharged 1.8-litre four-cylinder, based on our previous tests.
But given how much fun the RXP-X is on the water, the rider will likely run out of energy before the ski runs out of fuel.
Even at that level of consumption, the fuel tank is large enough to cover close to 100km or 60 miles between refills.
And it will give your body a workout while you’re at it.
2024 Sea-Doo RXP-X 325 RS verdict
To sum up, the 2024 Sea-Doo RXP-X 325 is an epic machine.
And it is definitely not for the feint hearted.
As we said earlier, this craft is better suited to experienced riders.
In our opinion the Sea-Doo RXP-X 325 RS is the best performance ski on the market today, not just because of its blistering acceleration, mid-range grunt, strong top-end, and industry-leading top speed, but because of the way it handles rough conditions.
Here’s hoping Sea-Doo brings some of the RXP-X hull’s magic to the larger models in its range in the future.
Watercraft Zone would like to extend a huge thanks to the guys at Lake And Valley Powersports on the Central Coast just north of Sydney, one of the biggest Sea-Doo dealers in Australia, who loaned us this craft to test over two weekends in early 2024.
VIDEO: 2024 Sea-Doo RXP-X 325 RS review and speed test
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