LLY Duramax Cold Air Intake Ultimate Guide
General Motors/Chevrolet produced the Duramax LLY 6.6L diesel V8 engine from 2004–2006. Depending on the mode, it produced 210–310 horsepower and 520–605 lb-ft of torque. It was the replacement for the LB7 V8 diesel engine, and was soon succeeded by the LBZ V8 diesel engine. While at the time, its 210–310 horsepower figure was decent,…