# Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2in Stainless Up Pipe Kit w/Gaskets - Single Turbo Replace the lightweight 16G, 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 for use with single turbo applications and factory exhaust manifolds. - - NOTE: These up pipes ONLY fit with OEM exhaust manifolds or WCFab Duramax Billet Exhaust Manifolds (WCF100363). - - Designed for use with WCFab downpipe. OEM and other aftermarket downpipes may require additional modifications - - Replaces the following GM Part numbers: 97223167, 97302261 - Fully TIG Welded 11 GA Stainless Steel Construction - Heavy Duty 2" Passenger Side Up Pipe - Heavy Duty 2" Driver Side Up Pipe - Includes Up Pipe Gaskets (4) - Made in USA This Part Fits: Year Make Model Submodel 2001-2004 Chevrolet Silverado 2500 HD Base 2001-2004 Chevrolet Silverado 2500 HD LS 2001-2004 Chevrolet Silverado 2500 HD LT 2004 Chevrolet Silverado 2500 HD WT 2001-2004 Chevrolet Silverado 3500 Base 2001-2004 Chevrolet Silverado 3500 LS 2001-2004 Chevrolet Silverado 3500 LT 2004 Chevrolet Silverado 3500 WT 2002-2004 GMC Sierra 2500 HD Base 2001-2002 GMC Sierra 2500 HD SL 2001-2004 GMC Sierra 2500 HD SLE 2001-2004 GMC Sierra 2500 HD SLT 2003-2004 GMC Sierra 2500 HD WT 2002-2004 GMC Sierra 3500 Base 2001-2002 GMC Sierra 3500 SL 2001-2004 GMC Sierra 3500 SLE 2001-2004 GMC Sierra 3500 SLT 2004 GMC Sierra 3500 WT ## Details - **Price:** 902.73 CAD - **Vendor:** Wehrli - **Type:** Connecting Pipes ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 902.73 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Close Up - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/wehrli-01-04-chevrolet-6-6l-duramax-lb7-2in-stainless-up-pipe-kit-w-gaskets-single-turbo) > Updated: 2026-07-03