Wehrli

Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2in Stainless Pass. Side Up Pipe w/Gaskets (Single Turbo) - WCF100654

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SKU:
WCFWCF100654
UPC:
WCF100654
MPN:
WCF100654
Availability:
Regularly stocked product
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MSRP: $345.00
$334.65
— You save $10.35
Current Stock: 29

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Description

Does the WCF Up Pipe Kit fit my 2006 Duramax LLY?
Confirm your specific vehicle's fitment with our detailed compatibility guide before purchasing this essential Connecting Pipes upgrade.

How difficult is the WCF Up Pipe Kit to install?
Installing this bolt-on Connecting Pipes kit is a straightforward process, replacing your OEM components for reliable exhaust flow.

The Wehrli WCF Up Pipe Kit ensures reliable performance for your Silverado or Sierra, boasting a heavy-duty 11 gauge, two inch stainless steel construction. Its robust stainless steel bellow design prevents cracking and leaks, offering superior durability over stock Connecting Pipes. This direct-fit upgrade significantly enhances exhaust flow and engine responsiveness for demanding applications.

Key Features

  • heavy-duty 11 gauge 2 inch Stainless up pipe
  • HD Stainless Bellow that will not crack and leak like OEM
  • Larger diameter and better flow than stock
  • clear a conventional downpipe behind the engine in single turbo applications
  • Fully TIG Welded 11 GA Sta
  • Replaces GM 97302261

Why Choose the WCF Up Pipe Kit

Eliminates costly OEM up pipe failures and leaks for reliable performance.

Delivers improved exhaust flow for enhanced engine responsiveness and power.

Provides a robust, long-lasting upgrade that withstands demanding conditions.

Achieves seamless integration, clearing space for single turbo setups.

Who Is This For?

Street Performance — 7/10
Larger diameter and better flow than stock.

Heavy Towing — 8/10
HD Stainless Bellow prevents leaks under load.

Easy DIY Install — 9/10
Bolt-on install type, replaces OEM part.

Engine Performance — 7/10
Larger diameter and better flow than stock.

Racing Competition — 6/10
Improved flow may benefit performance applications.

Frequently Asked Questions

Will the Wehrli Up Pipe Kit fit my 2003 Chevrolet Silverado 2500 HD?

This Wehrli Up Pipe Kit provides direct fitment for your 2003 Chevrolet Silverado 2500 HD. The kit is designed as a bolt-on replacement for seamless integration. Expect a perfect match for your specific truck model.

How difficult is the installation of the Wehrli Up Pipe Kit?

Installation of the Wehrli Up Pipe Kit is a straightforward bolt-on process. This ease of installation is reflected in a high 'Easy DIY Install' score of 9. You can confidently replace your stock pipes yourself.

What are the performance benefits of upgrading to the Wehrli Up Pipe Kit?

Upgrading to this kit enhances engine responsiveness and power, achieving a 'Engine Performance' score of 7. The larger diameter and better flow contribute to a more efficient exhaust gas evacuation. This results in a noticeable improvement in performance.

What are the benefits of the HD Stainless Bellow on the Wehrli Up Pipe Kit?

The HD Stainless Bellow on this kit prevents cracking and leaking, a common issue with OEM parts. This robust feature contributes to an 'Heavy Towing' usage score of 8, ensuring leak-free performance under demanding conditions. Your exhaust system remains reliable.

Vehicle Compatibility

YearMakeModelSubmodel
2001–2004ChevroletSilverado 2500 HDBase
2001–2004ChevroletSilverado 2500 HDLS
2001–2004ChevroletSilverado 2500 HDLT
2004ChevroletSilverado 2500 HDWT
2001–2004ChevroletSilverado 3500Base
2001–2004ChevroletSilverado 3500LS
2001–2004ChevroletSilverado 3500LT
2004ChevroletSilverado 3500WT
2001–2002GMCSierra 2500 HDSL
2001–2004GMCSierra 2500 HDSLE
2001–2004GMCSierra 2500 HDSLT
2002–2004GMCSierra 2500 HDBase
2003–2004GMCSierra 2500 HDWT
2001–2002GMCSierra 3500SL
2001–2004GMCSierra 3500SLE
2001–2004GMCSierra 3500SLT
2002–2004GMCSierra 3500Base
2004GMCSierra 3500WT

Additional Resources

Official Wehrli Product Page

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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Warranty Information

This Part Fits:

YearMakeModelSubmodel
2001-2004ChevroletSilverado 2500 HDBase
2001-2004ChevroletSilverado 2500 HDLS
2001-2004ChevroletSilverado 2500 HDLT
2004ChevroletSilverado 2500 HDWT
2001-2004ChevroletSilverado 3500Base
2001-2004ChevroletSilverado 3500LS
2001-2004ChevroletSilverado 3500LT
2004ChevroletSilverado 3500WT
2002-2004GMCSierra 2500 HDBase
2001-2002GMCSierra 2500 HDSL
2001-2004GMCSierra 2500 HDSLE
2001-2004GMCSierra 2500 HDSLT
2003-2004GMCSierra 2500 HDWT
2002-2004GMCSierra 3500Base
2001-2002GMCSierra 3500SL
2001-2004GMCSierra 3500SLE
2001-2004GMCSierra 3500SLT
2004GMCSierra 3500WT
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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
WCF100654
Proposition 65:
Y
Case Lot Quantity:
1
Category:
Exhaust, Mufflers & Tips>Connecting Pipes
Install Type:
Bolt-On
Product Level:
Mid Range
Street Performance:
7/10
Heavy Towing:
8/10
Easy DIY Install:
9/10
Engine Performance:
7/10
Racing Competition:
6/10
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