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Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2in Stainless Pass. Side Up Pipe w/Gaskets (Single Turbo)
Solve the notorious up pipe leak problem on your 2001–2004 Chevrolet LB7 Duramax with the Wehrli Custom Fabrication 2-inch Stainless Passenger Side Up Pipe. Precision-fabricated from 304 stainless steel, this up pipe delivers superior durability over the OEM cast iron unit which commonly cracks and leaks exhaust gases — leading to soot contamination, power loss, and unpleasant cabin odors. Designed for single turbo configurations, it's a direct-fit replacement that restores proper exhaust sealing.
Includes all required gaskets for a straightforward installation. Whether you're doing a full exhaust overhaul or addressing an existing leak, the WCFab stainless up pipe is the right solution for LB7 Duramax diesel truck owners seeking long-term reliability.
Fits: 2001–2004 Chevrolet 6.6L LB7 Duramax — Single Turbo
MPN: WCF100654