Duramax LMM Cold Air Intake Guide
The Duramax LMM was a monstrous 6.6 liter diesel V8 that General Motors/Chevrolet used in their heavy duty lineup from 2007–2010. Depending on the year and model it was in, the LMM put down 250-365 horsepower and 460–660 lb-ft of torque. Yet, with just a few mods you can seriously transform your truck and make…