2011-2016 LML BANKS POWER COLD AIR INTAKEUpgrade your 20112016 Duramax LML with the Banks Power Ram Air Cold Air Intake System, engineered to deliver increased airflow, improved throttle response, lower exhaust gas temperatures, and better overall engine performance. The Banks Ram Air system features a fully enclosed cold air box that prevents hot engine air from entering the intake, allowing cooler, denser air to reach the turbo for maximum efficiency and power. Designed and tested by Banks