Description
Replace the lightweight, leak-prone, 1 5/8″ OEM up pipes with these heavy-duty 11 gauge 2″ Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spool-up and decrease EGTs. This kit is used with twin turbo applications and factory exhaust manifolds or WCFab Duramax Billet Exhaust Manifolds (WCF100363)
Wehrli Custom Fab Up Pipe Kit w/ Gaskets (Twin Turbo), 2in, for 01-04 LB7 Duramax, Stainless
- Full flow design eliminates clearance dent and tight bends required for engine valley mount single turbo down pipes
- Heavy Duty 2″ Passenger Side Up Pipe Passenger Side Up Pipe for Compound / Twin Turbo Applications
- WILL NOT CLEAR a Conventional down pipe off a turbo mounted in the valley of the engine
- Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2″ Driver Side Up Pipe
- Includes Up Pipe Gaskets (4)
- Made in USA




















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