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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Wehrli
Wehrli Custom Fab 2in Stainless Passenger Side Up Pipe for Select 2001-2004 Chevrolet/GMC (6.6L) - Twin Turbo Only
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (6.6L LB7 Duramax) equipped with compound or twin turbocharger systems.
Replace the leak-prone, lightweight factory passenger side up pipe with this heavy-duty solution from Wehrli Custom Fab. Engineered specifically for compound/twin turbo applications, this 2-inch up pipe features sweeping, less aggressive bends to optimize exhaust flow, increase turbo spool-up, and help reduce Exhaust Gas Temperatures (EGTs). Constructed from 11-gauge stainless steel with heavy-duty bellows, it is designed to withstand the heat and pressure of high-performance diesel builds where the factory bellows typically crack and fail.
- Part Number: WCF100648
- Construction: 11-gauge stainless steel, fully TIG welded
- Diameter: 2-inch high-flow design
- Application: Compatible ONLY with compound/twin turbo setups; will not clear conventional single turbo downpipes
- Compatibility: Fits factory exhaust manifolds or WCFab Duramax Billet Exhaust Manifolds (WCF100363)
- Includes: (1) Passenger side up pipe and (2) gaskets
- Origin: Made in USA
🔧 Fitment & Compatibility
| 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 |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Wehrli Custom Fab 2in Stainless Passenger Side Up Pipe for Select 2001-2004 Chevrolet/GMC (6.6L) - Twin Turbo Only
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (6.6L LB7 Duramax) equipped with compound or twin turbocharger systems.
Replace the leak-prone, lightweight factory passenger side up pipe with this heavy-duty solution from Wehrli Custom Fab. Engineered specifically for compound/twin turbo applications, this 2-inch up pipe features sweeping, less aggressive bends to optimize exhaust flow, increase turbo spool-up, and help reduce Exhaust Gas Temperatures (EGTs). Constructed from 11-gauge stainless steel with heavy-duty bellows, it is designed to withstand the heat and pressure of high-performance diesel builds where the factory bellows typically crack and fail.
- Part Number: WCF100648
- Construction: 11-gauge stainless steel, fully TIG welded
- Diameter: 2-inch high-flow design
- Application: Compatible ONLY with compound/twin turbo setups; will not clear conventional single turbo downpipes
- Compatibility: Fits factory exhaust manifolds or WCFab Duramax Billet Exhaust Manifolds (WCF100363)
- Includes: (1) Passenger side up pipe and (2) gaskets
- Origin: Made in USA
🔧 Fitment & Compatibility
| 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 |
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