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Wehrli Custom Fab's heavy-duty stainless up pipe kit replaces the thin OEM 1 5/8" up pipes on 2017–2025 6.6L L5P Duramax Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with 11 gauge 2" stainless tubing. Fully TIG welded and supplied with gaskets, it improves flow, increases turbo spool-up and lowers EGTs, bolts to factory manifolds and requires no tuning.
Wehrli 17-24 Chevrolet 6.6L L5P Duramax 2in Stainless Up Pipe Kit w/Gaskets
