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Fix L5P up-pipe failures with this stainless bolt-on kit. Better turbo response, lower EGTs, and no leaks. Fits 2017–2024 Duramax 6.6L.
Custom fitment brief
Outline your vehicle, performance targets, and timeline. The build desk will confirm availability, pricing, and next steps in writing.
Get the GDP Commander for 2020+ Powerstroke & 2017+ L5P Duramax. No ECM shipping needed—flash, unlock, and tune remotely in minutes.
Vehicle Repair & Specialty Tools
Electronics Component Connectors
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