What is the NEW CMD Marine?
The Dynojet CMD (Combustion Management Device) is an easy-to-install fuel controller that gives the end user full control of the fuel curve in an easy to adjust format for the ultimate in air/fuel ratio tuning.

Pop the hatch to install the CMD Marine units, and within a few minutes you’ll have the power to control your engines fuel curve at the tips of your fingers. Our testing has shown impressive gains in fuel economy on all stock engines, while being flexible to support future modifications. Want to install those new headers or camshaft, the CMD Marine gives you the ability to tune the engine for a proper fuel delivery curve without the downtime of shipping your ECU off for recalibration. On a stock 502/500HP, we achieved a 28% increase in fuel economy in the midrange RPM’s with no other changes!