"Something less lethal. Got it." EMP missiles. The effect wouldn't last for long, but it should be long enough.
Of course, they would only work if she got them close enough to the engines, but that shouldn't be impossible even with the tricksy dodging. The best part was that they were, to all appearances, even standard ship's instruments, identical to the warheads. She even kept them in a warhead bay.
Sliver prepped the EMPs for use, then sent out a swarm of semi-smart missiles with flight instructions to keep the ship from dodging too much, then fired two EMPs, one aimed to clip the ship, one aimed to miss it, both placed to ensure that one of them would do the job.
That done, she pushed the comm spike button. "Can you hear me?"