Wehrli
Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2in Stainless Passenger Side Up Pipe w/Gaskets (Twin Turbo) - WCF100648
- SKU:
- WCFWCF100648
- UPC:
- WCF100648
- MPN:
- WCF100648
- Availability:
- Regularly stocked product
Description
Will the WCF Up Pipe Kit fit my 2003 Duramax?
WCF Up Pipe Kit fits your 2003 Duramax, specifically the 2001-2004 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD models.
How does the WCF Up Pipe Kit improve performance?
Bolt-on installation of these heavy-duty stainless steel connecting pipes increases turbo spool-up and decreases exhaust gas temperatures.
The Wehrli WCF Up Pipe Kit is engineered for the 2001-2004 Silverado and Sierra HD trucks, delivering improved turbo spool-up for enhanced engine performance. Featuring heavy-duty 11 gauge 2 inch stainless steel construction and HD stainless bellows, this connecting pipe kit is built for durability. Experience a significant boost in throttle response and sustained power output with this performance-focused upgrade.
Key Features
- heavy-duty 11 gauge 2 inch Stainless up pipe
- HD Stainless Bellows
- Increase Turbo spool-up
- decrease EGTs
- built with more sweeping, less aggressive bends for use in COMPOUND / TWIN TURBO STYLE APPLICATIONS ONLY
- Compatible with only factory exhaust manifolds or WCFab Duramax Billet Exhaust Manifolds (WCF100363)
- Full flow design eliminates clearance dent and tight bends required for engine valley mount single turbo down pipes
- Heavy Duty 2 inch Passenger Side Up Pipe
- Fully TIG Welded 11 GA Stainless Steel Construction
- Up Pipe Gaskets (2)
- Made in USA
Why Choose the WCF Up Pipe Kit
Delivers faster turbo spool-up for immediate throttle response and exhilarating acceleration.
Achieves lower Exhaust Gas Temperatures, protecting your engine and enabling sustained performance.
Provides a smoother, unrestricted exhaust flow, eliminating power-robbing restrictions.
Transforms your engine bay for aggressive compound turbo setups, unlocking extreme power potential.
Who Is This For?
Engine Performance — 9/10
Increases turbo spool-up and decreases EGTs.
Street Performance — 8/10
Enhances turbo spool-up for improved street driving.
Drag Racing — 8/10
Improved turbo spool-up benefits acceleration.
Heavy Towing — 7/10
Decreased EGTs are beneficial under load.
Easy DIY Install — 7/10
Bolt-on install type with included gaskets.
Racing Competition — 8/10
Performance gains from turbo spool and EGT reduction.
Additional Resources
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.
Warranty Information
| 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 |
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Clearance Item: |
N |
MPN: |
WCF100648 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Exhaust, Mufflers & Tips>Connecting Pipes |
Install Type: |
Bolt-On |
Product Level: |
Premium Performance |
Engine Performance: |
9/10 |
Street Performance: |
8/10 |
Drag Racing: |
8/10 |
Heavy Towing: |
7/10 |
Easy DIY Install: |
7/10 |
Racing Competition: |
8/10 |
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