As they’re exposed to the elements and in danger of debris flying up from the road, exhaust damage or corrosion is a fact of life. However, replacement doesn’t have to be a pain thanks to Norcal Diesel Performance’s range of 6.6L L5P Exhaust Parts. With quality aftermarket parts from suppliers like Banks Power, you can be sure to get an exhaust that will fit your vehicle and do its job for years to come.
High Flow 3" Downpipe for 17-25 GM 6.6L Duramax Diesel L5PNew
Ditch the flattened, restrictive factory downpipe on your 2017–2025 GM 6.6L Duramax L5P and replace it with a full 3.5" mandrel-bent high flow unit. Smooth internal bends and a larger cross-...
PPE High-Flow Manifolds & Up-Pipes Kit for 2017–2025 L5P Duramax RAWNew840171209082
Unlock exhaust flow and lower EGTs on your 2017–2025 6.6L L5P Duramax with PPE’s High-Flow Exhaust Manifolds and Up-Pipes Kit, engineered for 50‑state legal power, faster sp...