Development of the supercharged twin-turbo Duramax powerplant had slowed to an idle the past few months due to having a skeleton crew because of the COVID outbreak in California. Things have changed as of late with crews returning, so that stalled progress is ramping up. With the addition of the twin turbos, the engineering team has been hard at work getting new instrumentation and exhaust components installed so that the engine can run in its new configuration.
First-fire will happen soon, as well as a video update. Stay tuned!