S&B Cold Air Intake | GM/Duramax LLY/LBZ/LB7 6.6L | 2001-2007

The S&B Cold Air Intake for the 2001–2007 GM 6.6L Duramax covers the LB7, LLY, and LBZ generations and delivers a 43.69% airflow increase over your factory setup. These early Duramax engines are workhorses, but they've always been restricted at the air intake, and this S&B kit fixes that with a sealed, high-flow system.The factory airbox on these trucks was built more for emissions packaging than airflow. The S&B system pulls cooler, cleaner air to your turbo at 43...