Wehrli Duramax Exhaust Manifold Kit w/ Gaskets & Hardware — Fits 2001-2016 Chevrolet/GMC Duramax

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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.

Watch in action

Wehrli Exhaust Manifold Kit for 2001-2016 Chevrolet/GMC Duramax Engines

Improve the exhaust efficiency of your Duramax engine with the Wehrli Exhaust Manifold Kit. This comprehensive kit is designed for 2001-2016 Chevrolet and GMC Duramax models, providing a direct replacement for stock manifolds. It includes all necessary gaskets and hardware for a complete and reliable installation, ensuring optimal performance and durability.

Features and Benefits:

  • Direct Fit Replacement: Engineered to replace the factory exhaust manifolds on 2001-2016 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD with Duramax engines.
  • Enhanced Exhaust Flow: The design promotes smoother exhaust gas evacuation from the cylinders, potentially improving turbo spool and overall engine breathing.
  • Durable Construction: Built with high-quality materials to withstand extreme exhaust temperatures and pressures.
  • Complete Kit: Includes premium gaskets and all required hardware for a hassle-free installation.
  • Improved Performance: Optimized exhaust flow can contribute to increased horsepower and torque, especially when paired with other performance modifications.

This Wehrli Exhaust Manifold Kit is an excellent choice for Duramax owners looking to replace worn-out stock manifolds or seeking a performance upgrade. By ensuring a proper seal and efficient gas flow, it helps maintain optimal engine performance and can reduce the likelihood of exhaust leaks. The included hardware ensures that all components are securely fastened, providing peace of mind for daily driving or heavy-duty use.

Invest in your Duramax's exhaust system. Purchase the Wehrli Exhaust Manifold Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2016 Chevrolet Silverado 2500 HD LT
2007-2016 Chevrolet Silverado 2500 HD LTZ
2015-2016 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2016 Chevrolet Silverado 3500 HD LT
2007-2016 Chevrolet Silverado 3500 HD WT
2015-2016 Chevrolet Silverado 3500 HD High Country
2001-2002 GMC Sierra 2500 HD SL
2001-2016 GMC Sierra 2500 HD SLE
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2011-2016 GMC Sierra 2500 HD Denali
2015-2016 GMC Sierra 2500 HD Base
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2001-2002 GMC Sierra 3500 SL
2001-2006 GMC Sierra 3500 SLE
2001-2006 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007-2014 GMC Sierra 3500 HD WT
2007-2016 GMC Sierra 3500 HD SLE
2007-2016 GMC Sierra 3500 HD SLT
2011-2016 GMC Sierra 3500 HD Denali

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 Exhaust Manifold Kit for 2001-2016 Chevrolet/GMC Duramax Engines

Improve the exhaust efficiency of your Duramax engine with the Wehrli Exhaust Manifold Kit. This comprehensive kit is designed for 2001-2016 Chevrolet and GMC Duramax models, providing a direct replacement for stock manifolds. It includes all necessary gaskets and hardware for a complete and reliable installation, ensuring optimal performance and durability.

Features and Benefits:

  • Direct Fit Replacement: Engineered to replace the factory exhaust manifolds on 2001-2016 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD with Duramax engines.
  • Enhanced Exhaust Flow: The design promotes smoother exhaust gas evacuation from the cylinders, potentially improving turbo spool and overall engine breathing.
  • Durable Construction: Built with high-quality materials to withstand extreme exhaust temperatures and pressures.
  • Complete Kit: Includes premium gaskets and all required hardware for a hassle-free installation.
  • Improved Performance: Optimized exhaust flow can contribute to increased horsepower and torque, especially when paired with other performance modifications.

This Wehrli Exhaust Manifold Kit is an excellent choice for Duramax owners looking to replace worn-out stock manifolds or seeking a performance upgrade. By ensuring a proper seal and efficient gas flow, it helps maintain optimal engine performance and can reduce the likelihood of exhaust leaks. The included hardware ensures that all components are securely fastened, providing peace of mind for daily driving or heavy-duty use.

Invest in your Duramax's exhaust system. Purchase the Wehrli Exhaust Manifold Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2016 Chevrolet Silverado 2500 HD LT
2007-2016 Chevrolet Silverado 2500 HD LTZ
2015-2016 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2016 Chevrolet Silverado 3500 HD LT
2007-2016 Chevrolet Silverado 3500 HD WT
2015-2016 Chevrolet Silverado 3500 HD High Country
2001-2002 GMC Sierra 2500 HD SL
2001-2016 GMC Sierra 2500 HD SLE
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2011-2016 GMC Sierra 2500 HD Denali
2015-2016 GMC Sierra 2500 HD Base
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2001-2002 GMC Sierra 3500 SL
2001-2006 GMC Sierra 3500 SLE
2001-2006 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007-2014 GMC Sierra 3500 HD WT
2007-2016 GMC Sierra 3500 HD SLE
2007-2016 GMC Sierra 3500 HD SLT
2011-2016 GMC Sierra 3500 HD Denali

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 Exhaust Manifold Kit for 2001-2016 Chevrolet/GMC Duramax Engines

Improve the exhaust efficiency of your Duramax engine with the Wehrli Exhaust Manifold Kit. This comprehensive kit is designed for 2001-2016 Chevrolet and GMC Duramax models, providing a direct replacement for stock manifolds. It includes all necessary gaskets and hardware for a complete and reliable installation, ensuring optimal performance and durability.

Features and Benefits:

  • Direct Fit Replacement: Engineered to replace the factory exhaust manifolds on 2001-2016 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD with Duramax engines.
  • Enhanced Exhaust Flow: The design promotes smoother exhaust gas evacuation from the cylinders, potentially improving turbo spool and overall engine breathing.
  • Durable Construction: Built with high-quality materials to withstand extreme exhaust temperatures and pressures.
  • Complete Kit: Includes premium gaskets and all required hardware for a hassle-free installation.
  • Improved Performance: Optimized exhaust flow can contribute to increased horsepower and torque, especially when paired with other performance modifications.

This Wehrli Exhaust Manifold Kit is an excellent choice for Duramax owners looking to replace worn-out stock manifolds or seeking a performance upgrade. By ensuring a proper seal and efficient gas flow, it helps maintain optimal engine performance and can reduce the likelihood of exhaust leaks. The included hardware ensures that all components are securely fastened, providing peace of mind for daily driving or heavy-duty use.

Invest in your Duramax's exhaust system. Purchase the Wehrli Exhaust Manifold Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2016 Chevrolet Silverado 2500 HD LT
2007-2016 Chevrolet Silverado 2500 HD LTZ
2015-2016 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2016 Chevrolet Silverado 3500 HD LT
2007-2016 Chevrolet Silverado 3500 HD WT
2015-2016 Chevrolet Silverado 3500 HD High Country
2001-2002 GMC Sierra 2500 HD SL
2001-2016 GMC Sierra 2500 HD SLE
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2011-2016 GMC Sierra 2500 HD Denali
2015-2016 GMC Sierra 2500 HD Base
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2001-2002 GMC Sierra 3500 SL
2001-2006 GMC Sierra 3500 SLE
2001-2006 GMC Sierra 3500 SLT
2002-2005 GMC Sierra 3500 Base
2004-2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007-2014 GMC Sierra 3500 HD WT
2007-2016 GMC Sierra 3500 HD SLE
2007-2016 GMC Sierra 3500 HD SLT
2011-2016 GMC Sierra 3500 HD Denali

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