We have a refurbished/re-flashed Mercury Racing 300XS PCM

Suits all Mercury 300XS 3.2 ltr Optimax DFI racing outboards.

The ecu is pre pcm0101 so it won’t drive the smartcraft guages with engine monitoring.

We can also supply and fit Dave Bush upgrade kits for the 300XS, to take your outboard motor to 325hp.