Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2in Stainless Up Pipe Kit w/Gaskets - Twin Turbo - WCF100589

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)