2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Exhaust Brakes

Maximize your truck's towing and hauling capabilities with a 2020-2025 GM 2500HD/3500HD 6.6L Duramax Exhaust Brake from Alligator Performance! Exhaust brakes are a crucial upgrade for heavy-duty applications, providing additional braking power by using engine exhaust to slow your truck without over-relying on your primary braking system. This added control is especially useful for managing steep descents or heavy loads, helping reduce brake wear all while ensuring a safer towing performance. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 GM 6.6L Duramax. Submodel 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.