2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Single-Exit Kits

Upgrade your 2020-2025 GM 6.6L Duramax L5P with one of these premium single-exit exhaust kits from Alligator Performance! These premium systems feature advanced designs and high-quality materials to maximize airflow, boost performance, and enhance your truck’s overall efficiency. Many of these kits come with aggressive-styled tips and powerful mufflers for an upgraded look and sound, while others allow you to choose your own exhaust tip for a more custom finish. For even greater performance gains, pair any of these single-exit exhaust systems with an aftermarket Cold Air Intake or a performance Tuner to unlock hidden horsepower and torque in your GM 2500HD/3500HD. 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.