The RXP-X Senna 350 is not a ski you just start modifying. There are 1,991 of them worldwide, each with a numbered plaque and Ayrton Senna's signature on the ski. If you own one, you still want to ride it, and ride it without the factory GPS limiter. The real question is how to do that without touching its original condition. Here is why a reversible approach matters on a numbered edition and how to do it.
What makes the Senna 350 special
The Senna is a limited edition from a one-year partnership between Sea-Doo and Senna Brand, honoring Ayrton Senna. Underneath it is an RXP-X 350: T3-R hull and the Rotax 1630 ACE 350 with supercharger, external intercooler and 350 hp.
Then there is everything only the Senna gets:
- Racing Yellow and Amazon Green paint
- Ayrton Senna's signature, the Senna logo and Senna quotes
- A numbered plaque
- A matching passenger seat included, so it seats two
- A branded cover
- BRP Platinum Audio with 2 x 80 watts
Dry weight is 353 kg (about 778 lb). Dimensions, the 70 liter (18.5 gal) tank and the 182 kg (about 401 lb) payload match the RXP-X 350.
Why every part matters on a collector edition
With a numbered ski it is not only about how it rides today. It is also about what shape it is in a few years down the road. A buyer looking for a Senna will look closely. Every aftermarket part, every extra connector in the harness and every drilled hole raises questions.
Then there is how a ski like this gets used. A Senna gets cleaned, parked under its branded cover and taken out on the days that count. An add-on module that stays tied into the electronics the whole time does not fit that idea.
A SCOM is a poor fit for that. It keeps manipulating the speed signal, so it has to stay hard-wired. If you want the original setup back, you have to pull the module and undo the wiring. We explained why a SCOM cannot work any other way in Why a SCOM has to stay permanently connected.
The reversible route: Speed Limit Remover
The M-JET Speed Limit Remover does not get installed. You plug it into the diagnostic connector for a moment, remove the limit in the M-JET SLI app and unplug it again. Nothing stays on the Senna: no module, no wire, no hole.
Going back is just as simple. Turn the limit back on in the app and the factory limiter is active again, just like on day one. You can do that on your ski as often as you like. For a collector edition, that is the point that counts: you can change your mind at any time, and nothing on the ski stays altered in a way you cannot undo.
A few more things that matter on the Senna:
- No change in power: the Speed Limit Remover is not a tune. Engine and calibration stay stock.
- No ECU unlock: the ECU stays in the ski and never gets shipped anywhere.
- Tied to your ski: on the first pairing the device locks to your Senna's VIN. It belongs to that one ski.
What about tuning the Senna?
The Senna 350 is supported by the M-JET FLASHER as well. On a limited edition, though, tuning is a bigger step than removing the limiter, and it is worth deciding on deliberately. Before the first flash, the Bosch MG1CA920 ECU needs a one-time unlock. Ship it to our location in Florida or in Germany, or buy a replacement ECU that comes already unlocked. With the replacement you do not have to ship your own ECU, and the flasher transfers the relevant data from the old unit to the new one.
You can restore the stock software at any time, and the app shows which setups are available. If all you want is to lose the limiter, you need none of that. For the base model, read RXP-X 350: removing the limiter on a race-bred ski. Every option is laid out on our Sea-Doo SCOM alternative page.
FAQ
Does anything stay installed on the Senna?
No. The Speed Limit Remover only sits on the diagnostic connector while you switch the limit. Then you unplug it, and no part stays on the ski.
Can I turn the limiter back on before selling?
Yes. Turn it back on in the app, as often as you like. The factory limiter is then active again.
Can I use the device on a second Sea-Doo?
No. After the first pairing it is tied to your Senna's VIN. Every other ski needs its own device.
