Duramax LML Cold Air Intake Upgrade Guide
The 6.6L Duramax LML was released in 2011 and produced through 2016. Producing 397hp and 765lb-ft. of torque, the LML delivered solid power and was a strong competitor to Ford and Cummins 6.7L diesel engines of the time. While the LML’s power is just about as much as anyone would need, there are still some…