2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Manifolds & Up-Pipes

Upgrading to aftermarket up-pipes on your 2017-2019 GM 6.6L Duramax L5P is a smart move if you're looking to elevate your truck's overall power and performance. Engineered to lower Exhaust Gas Temperatures (EGTs) and optimize airflow, these aftermarket up-pipes and manifolds provide a significant boost in horsepower and torque, ensuring your GM 2500HD/3500HD is ready to tackle any challenge. What makes these additions even more valuable is their ability to reduce back-pressure, which not only enhances performance but also improves reliability. This is especially important for those planning future upgrades, as these pipes lay a solid foundation for additional performance modifications.  GM Duramax Fitments: 2017, 2018, 2019 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.