In 2019, General Motors introduced the Duramax 3.0 diesel engine in its lineup ... Several years later, in 2023, the inline-six engine saw an upgrade that pushed its capabilities to 305 horsepower ...

Installing a freer-flowing turbo mouthpiece (usually from the LBZ) is a common fix that can reduce temps and allegedly improve turbo performance ... Motors's 3.0-liter inline-six LM2 Duramax ...

We will make the 2020MY Duramax available for dealers orders soon, and expect to deliver the first trucks to customers soon after emissions testing is complete." We know the new 3.0-liter Duramax ...