Wehrli 2001-2004 LB7 Duramax 2" Stainless Twin Turbo Up Pipe Kit for OEM or WCFab Manifolds w/ Gaskets

- Fully TIG Welded 11 GA Stainless Steel Construction - Heavy Duty 2" Driver Side Up Pipe - Heavy Duty 2" Passenger Side Up Pipe Passenger Side Up Pipe for Compound / Twin Turbo Applications - Full flow design eliminates clearance dent and tight bends required for engine valley mount single turbo down pipes - (WILL NOT CLEAR a Conventional Single Turbo down pipe!) - Up Pipe Gaskets (4) - Made in USA 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); they WILL NOT clear a conventional downpipe routed behind the engine. Both sides are nearly symmetrical, with no indents for a conventional downpipe to clear. INCLUDES GASKETS! NOTE: These up pipes WILL NOT CLEAR a standard downpipe routing behind the engine. For Twin Turbo Applications ONLY!