There are essentially two ways to get around the factory speed limiter on a Sea-Doo 325, and both lead to the same result but arrive there quite differently.
Method 1: Permanently Installed Module
A SCOM-style module is wired in permanently between the GPS antenna and the control module, continuously sending altered speed values for as long as it stays connected.
Method 2: One-Time Activation
The M-JET Speed Limit Remover connects briefly, the change is activated once through the app, and the device is then removed. In practice, most owners who understand both methods choose the one-time option.