Wehrli

Wehrli 17-24 Chevrolet 6.6L L5P Duramax 2in Stainless Up Pipe Kit w/Gaskets

SKU: WCFWCF100624
★★★★★ 4.9 · 47 reviews
$683.85
Only 5 left
Shipping calculated at checkout
Full manufacturer warranty included
30-day hassle-free returns
We're here to help you find the right part

Replace the lightweight 16G, leak prone, 1 5/8" OEM up pipes on your 2017-2025 6.6L L5P Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck 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 EGT's. This kit is for use with factory exhaust manifolds. - - Fully compatible with WCFab Billet Exhaust Manifolds (Part Number WCF100373). - - INCLUDES GASKETS! -NO Tuning required, bolt on! -Will fit on stock truck no other modifications or upgrades necessary! - - Replaces the following GM Part Numbers: 12688021, 12702943, 12681437, 12680270, 12681162, 12674813, 12681162, 12676611 - - Also fits 2019+ L5D Duramax (4500/5500/6500) Medium Duty Trucks.

  • Fully TIG Welded 11 GA Stainless Steel Construction
  • Heavy Duty 2" Passenger Side Up Pipe
  • Heavy Duty 2" Driver Side Up Pipe
  • Flows 26% Better than OEM
  • Up Pipe Gaskets (4)
  • NO TUNING REQUIRED
  • Made in USA

This Part Fits:

Year Make Model Submodel
2021-2025 Chevrolet Silverado 2500 HD Custom
2017-2025 Chevrolet Silverado 2500 HD High Country
2017-2025 Chevrolet Silverado 2500 HD LT
2017-2025 Chevrolet Silverado 2500 HD LTZ
2017-2025 Chevrolet Silverado 2500 HD WT
2024-2025 Chevrolet Silverado 2500 HD ZR2
2017-2025 Chevrolet Silverado 3500 HD High Country
2017-2025 Chevrolet Silverado 3500 HD LT
2017-2025 Chevrolet Silverado 3500 HD LTZ
2017-2025 Chevrolet Silverado 3500 HD WT
2020-2025 GMC Sierra 2500 HD AT4
2024-2025 GMC Sierra 2500 HD AT4X
2017-2021 GMC Sierra 2500 HD Base
2017-2025 GMC Sierra 2500 HD Denali
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2022-2025 GMC Sierra 2500 HD Pro
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD Denali
2024-2025 GMC Sierra 3500 HD Denali Ultimate
2022-2025 GMC Sierra 3500 HD Pro
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT
This Part Fits:
Year Make Model Submodel
Loading fitment data...
SKU WCFWCF100624
Brand Wehrli
Type Connecting Pipes
Weight 10.7 lb

Shipping

  • Shipping rates calculated at checkout based on your location
  • Standard shipping (5–7 business days): calculated at checkout
  • Expedited shipping (2–3 business days): available at checkout
  • Overnight shipping: available for most in-stock items
  • Most in-stock orders ship the same business day if placed before 2pm CST

Returns

  • 30-day returns on all unused, uninstalled parts in original packaging
  • Installed or modified parts cannot be returned
  • Defective items are covered under full manufacturer warranty
  • Contact our support team to initiate a return or warranty claim

Connect a reviews app (Judge.me, Yotpo, Stamped.io) to display reviews here.