When it comes to performance parts for the 2022 and 2023 Kawasaki Ultra 310 JetSki, look no further than Kspeed out of Brisbane, Australia. “We are team of experts that focuses purely on Kawasaki 4-stroke JetSkis. We work, race, ride, modify and best of all – we go to sleep at night dreaming about them.”
The team at Kspeed got their first 2022 test machine in July 2022, and spent about 3 months “cracking the code” on the new ECU and engine management system. Kspeed’s Stage 1 kit for the previous generation of Ultra 310s was the culmination of nearly a decade of research and development.
These dyno confirmed, race tested breakthroughs in tuning and component design are now available for 2022+ Kawasaki Ultra 310 Series Jet Skis. Kspeed’s initial bench marking of their new Stage 1 was done on a 2022 310X, which logged a top sustained top speed of 73.3 mph, and a 0-65 mph time of 5.37 seconds.
The stock speed of the same 310X was logged as 66.2 mph with a 0-65mph time of 6.97 seconds. With those results, the Stage 1 kit yielded a 7.1 mph improvement and shaved 1.6 seconds off the 0-65mph time.
The $922 USD kit + shipping (price fluctuates with exchange rates) includes a 2-degree aluminum pump wedge, a top-loading intake grate, and an ECU reflash. This is not a grab bag of random components from other manufacturers- these are all high-quality Kspeed branded components that have been developed and tested in-house.
The KSpeed intake grate lacks the restrictive grilles and boxy geometry present on the stock grate. By changing the angle of water entry, Kspeed can get more water into the pump, which improves hook-up in all conditions.
The 2-degree aluminum wedge is installed between the jet pump body and the exit nozzle. Rather than bending the water flow by trimming the nozzle and slowing down the flow of water slightly, this wedge allows 2-degree positive trim in neutral position.
With the factory speed limiter removed, the tuned Kspeed ECU delivers up to 10% more horsepower than stock. Riders will notice increased acceleration as well as a decrease in throttle lag and a faster launch off the line.
While the reflash service itself is included in the purchase price of the Stage 1 kit, buyers must first mail their current stock ECU (with both the Black key and the Yellow SLO key) into Kspeed, at their own expense – or purchase an additional ECU.
