2007.5-2010 LMM K&N AIR INTAKE SYSTEMUpgrade your 2007. 52010 LMM Duramax with the K&N air intake system, engineered to increase airflow, improve throttle response, and deliver consistent performance gains. Designed to replace the restrictive factory intake, these systems allow your engine to breathe easier, resulting in improved horsepower, torque, and overall efficiency. Available K&N Intake Options: AirCharger Intake System (57 3066)This high performance intake system features a roto