Wehrli 6.6L LB7 Duramax Stainless Up Pipe - Passenger Side — Fits 2001-2004 Chevy/GMC

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wehrli

Wehrli engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wehrli lineup with fast shipping and expert fitment support — order with confidence.

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Wehrli 2-Inch Stainless Steel Passenger Side Up Pipe for 2001-2004 LB7 Duramax

Enhance the exhaust efficiency of your early Duramax engine with the Wehrli 2-inch Stainless Steel Passenger Side Up Pipe. Specifically designed for 2001-2004 Chevrolet Silverado and GMC Sierra 2500HD/3500 models equipped with the 6.6L LB7 Duramax engine, this up pipe is an ideal upgrade for performance-minded owners. It's engineered for single turbo applications, ensuring optimal exhaust gas flow from the exhaust manifold to the turbocharger.

Key Features and Benefits:

  • Material: Constructed from premium stainless steel for exceptional durability and resistance to corrosion and high temperatures.
  • Pipe Diameter: Features a 2-inch inner diameter, promoting improved exhaust flow and reducing backpressure.
  • Vehicle Specific: Precision-fit for the passenger side of 2001, 2002, 2003, and 2004 Chevrolet Silverado 2500HD, Silverado 3500, GMC Sierra 2500HD, and Sierra 3500 models with the LB7 engine.
  • Single Turbo Design: Optimized for factory and aftermarket single turbocharger setups, ensuring seamless integration.
  • Includes Gaskets: Comes with the necessary gaskets for a secure and leak-free installation.
  • Performance Gains: Helps to improve turbo spool time and can contribute to increased horsepower and torque output.

This Wehrli up pipe is a crucial component for anyone looking to extract more performance from their LB7 Duramax. The stainless steel construction ensures longevity, while the larger diameter pipe facilitates better exhaust flow, leading to a more responsive engine. It's a cost-effective modification that provides tangible benefits for daily driving and performance applications.

Boost your Duramax's performance with this quality up pipe from GGCRACING.

Vehicle Fitment

Years Make Model Trim
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
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2004 GMC Sierra 2500 HD SLE
2001-2004 GMC Sierra 2500 HD SLT
2002-2004 GMC Sierra 2500 HD Base
2003-2004 GMC Sierra 2500 HD WT
2001-2004 GMC Sierra 3500 SLE
2001-2004 GMC Sierra 3500 SLT
2002-2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 WT

Product Details

Product Description
Part Numbers
Sizing & Fit

About Wehrli

Wehrli engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wehrli lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Wehrli 2-Inch Stainless Steel Passenger Side Up Pipe for 2001-2004 LB7 Duramax

Enhance the exhaust efficiency of your early Duramax engine with the Wehrli 2-inch Stainless Steel Passenger Side Up Pipe. Specifically designed for 2001-2004 Chevrolet Silverado and GMC Sierra 2500HD/3500 models equipped with the 6.6L LB7 Duramax engine, this up pipe is an ideal upgrade for performance-minded owners. It's engineered for single turbo applications, ensuring optimal exhaust gas flow from the exhaust manifold to the turbocharger.

Key Features and Benefits:

  • Material: Constructed from premium stainless steel for exceptional durability and resistance to corrosion and high temperatures.
  • Pipe Diameter: Features a 2-inch inner diameter, promoting improved exhaust flow and reducing backpressure.
  • Vehicle Specific: Precision-fit for the passenger side of 2001, 2002, 2003, and 2004 Chevrolet Silverado 2500HD, Silverado 3500, GMC Sierra 2500HD, and Sierra 3500 models with the LB7 engine.
  • Single Turbo Design: Optimized for factory and aftermarket single turbocharger setups, ensuring seamless integration.
  • Includes Gaskets: Comes with the necessary gaskets for a secure and leak-free installation.
  • Performance Gains: Helps to improve turbo spool time and can contribute to increased horsepower and torque output.

This Wehrli up pipe is a crucial component for anyone looking to extract more performance from their LB7 Duramax. The stainless steel construction ensures longevity, while the larger diameter pipe facilitates better exhaust flow, leading to a more responsive engine. It's a cost-effective modification that provides tangible benefits for daily driving and performance applications.

Boost your Duramax's performance with this quality up pipe from GGCRACING.

Vehicle Fitment

Years Make Model Trim
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
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2004 GMC Sierra 2500 HD SLE
2001-2004 GMC Sierra 2500 HD SLT
2002-2004 GMC Sierra 2500 HD Base
2003-2004 GMC Sierra 2500 HD WT
2001-2004 GMC Sierra 3500 SLE
2001-2004 GMC Sierra 3500 SLT
2002-2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 WT

Product Details

Product Description

About Wehrli

Wehrli engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Wehrli lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Wehrli 2-Inch Stainless Steel Passenger Side Up Pipe for 2001-2004 LB7 Duramax

Enhance the exhaust efficiency of your early Duramax engine with the Wehrli 2-inch Stainless Steel Passenger Side Up Pipe. Specifically designed for 2001-2004 Chevrolet Silverado and GMC Sierra 2500HD/3500 models equipped with the 6.6L LB7 Duramax engine, this up pipe is an ideal upgrade for performance-minded owners. It's engineered for single turbo applications, ensuring optimal exhaust gas flow from the exhaust manifold to the turbocharger.

Key Features and Benefits:

  • Material: Constructed from premium stainless steel for exceptional durability and resistance to corrosion and high temperatures.
  • Pipe Diameter: Features a 2-inch inner diameter, promoting improved exhaust flow and reducing backpressure.
  • Vehicle Specific: Precision-fit for the passenger side of 2001, 2002, 2003, and 2004 Chevrolet Silverado 2500HD, Silverado 3500, GMC Sierra 2500HD, and Sierra 3500 models with the LB7 engine.
  • Single Turbo Design: Optimized for factory and aftermarket single turbocharger setups, ensuring seamless integration.
  • Includes Gaskets: Comes with the necessary gaskets for a secure and leak-free installation.
  • Performance Gains: Helps to improve turbo spool time and can contribute to increased horsepower and torque output.

This Wehrli up pipe is a crucial component for anyone looking to extract more performance from their LB7 Duramax. The stainless steel construction ensures longevity, while the larger diameter pipe facilitates better exhaust flow, leading to a more responsive engine. It's a cost-effective modification that provides tangible benefits for daily driving and performance applications.

Boost your Duramax's performance with this quality up pipe from GGCRACING.

Vehicle Fitment

Years Make Model Trim
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
2004 Chevrolet Silverado 3500 WT
2001-2002 GMC Sierra 2500 HD SL
2001-2004 GMC Sierra 2500 HD SLE
2001-2004 GMC Sierra 2500 HD SLT
2002-2004 GMC Sierra 2500 HD Base
2003-2004 GMC Sierra 2500 HD WT
2001-2004 GMC Sierra 3500 SLE
2001-2004 GMC Sierra 3500 SLT
2002-2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 WT

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