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

The dual-exit exhaust systems we offer here at Alligator Performance are crafted by some of the most trusted names in the industry, giving you the confidence to upgrade your 2020-2025 GM 6.6L Duramax L5P with the aggressive sound and performance it deserves. These systems not only deliver a mean exhaust rumble but also feature bold, aggressively designed tips that add a custom look to your truck’s exterior. Once you’ve found the dual-exit exhaust kit that fits your style and needs, consider pairing it with an aftermarket Cold Air Intake or Performance Tuner to unlock even more power and torque from your 6.6L Duramax. 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.