2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Cold Air Intakes

The 6.6L Duramax L5P engine under the hood of your 2020 to 2025 GM 2500HD or 3500HD truck is already a powerhouse, but it’s always ready for more airflow to maximize efficiency and performance. One of the easiest and most effective upgrades you can make is a premium Cold Air Intake system, designed to help your engine breathe easier and perform better. Some of these intake systems even feature dual air inlets, significantly boosting airflow to improve power, throttle response, and overall engine efficiency. Most Cold Air Intake kits also come with larger, reusable air filters that provide better protection against contaminants while saving you money in the long run. Pair your new Cold Air Intake with a new performance tuner or exhaust system to maximize your performance gains! GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 2023, 2024, 2025 GM 6.6L Duramax. Sub model Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.