Wehrli Billet Exhaust Manifold Kit for 17-24 L5P Duramax w/ Gaskets & ARP Hardware

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Sale price$1,450.99 Regular price$1,495.00
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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.

Wehrli Billet Exhaust Manifold Kit for 2017-2024 L5P Duramax

Elevate your Duramax's exhaust performance with the Wehrli Billet Exhaust Manifold Kit, designed for 2017-2024 Chevrolet and GMC trucks equipped with the 6.6L L5P engine. This premium kit replaces the stock exhaust manifolds with precision-machined billet components, ensuring superior flow, durability, and performance gains.

Key Features & Benefits:

  • Billet Construction: Machined from solid billet aluminum for exceptional strength, rigidity, and resistance to warping under high temperatures and pressures.
  • Optimized Flow: The billet design promotes smoother exhaust gas flow, reducing backpressure and improving turbocharger spool-up time.
  • Enhanced Durability: Significantly stronger than factory cast manifolds, these billet units are built to withstand the extreme conditions of modified diesel engines.
  • Complete Kit: Includes high-quality gaskets and genuine ARP hardware for a secure and reliable installation.
  • Performance Gains: Improved exhaust flow can lead to noticeable increases in horsepower, torque, and throttle response.
  • Direct Fit for L5P: Engineered specifically for the 2017-2024 6.6L L5P Duramax engine, ensuring proper fitment.

This exhaust manifold kit is an essential upgrade for diesel enthusiasts seeking to push the limits of their L5P Duramax. Experience improved performance, reliability, and a more aggressive exhaust note.

Get the best diesel performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2025 Chevrolet Silverado 2500 HD High Country
2017-2025 Chevrolet Silverado 2500 HD LT
2017-2025 Chevrolet Silverado 2500 HD LTZ
2017-2025 Chevrolet Silverado 2500 HD WT
2021-2025 Chevrolet Silverado 2500 HD Custom
2017-2025 Chevrolet Silverado 3500 HD High Country
2017-2025 Chevrolet Silverado 3500 HD LT
2017-2025 Chevrolet Silverado 3500 HD LTZ
2017-2025 Chevrolet Silverado 3500 HD WT
2017-2025 GMC Sierra 2500 HD Denali
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 2500 HD AT4
2022-2025 GMC Sierra 2500 HD Pro
2024-2025 GMC Sierra 2500 HD AT4X
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2022-2025 GMC Sierra 3500 HD Pro
2024-2025 GMC Sierra 3500 HD Denali Ultimate

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.

Wehrli Billet Exhaust Manifold Kit for 2017-2024 L5P Duramax

Elevate your Duramax's exhaust performance with the Wehrli Billet Exhaust Manifold Kit, designed for 2017-2024 Chevrolet and GMC trucks equipped with the 6.6L L5P engine. This premium kit replaces the stock exhaust manifolds with precision-machined billet components, ensuring superior flow, durability, and performance gains.

Key Features & Benefits:

  • Billet Construction: Machined from solid billet aluminum for exceptional strength, rigidity, and resistance to warping under high temperatures and pressures.
  • Optimized Flow: The billet design promotes smoother exhaust gas flow, reducing backpressure and improving turbocharger spool-up time.
  • Enhanced Durability: Significantly stronger than factory cast manifolds, these billet units are built to withstand the extreme conditions of modified diesel engines.
  • Complete Kit: Includes high-quality gaskets and genuine ARP hardware for a secure and reliable installation.
  • Performance Gains: Improved exhaust flow can lead to noticeable increases in horsepower, torque, and throttle response.
  • Direct Fit for L5P: Engineered specifically for the 2017-2024 6.6L L5P Duramax engine, ensuring proper fitment.

This exhaust manifold kit is an essential upgrade for diesel enthusiasts seeking to push the limits of their L5P Duramax. Experience improved performance, reliability, and a more aggressive exhaust note.

Get the best diesel performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2025 Chevrolet Silverado 2500 HD High Country
2017-2025 Chevrolet Silverado 2500 HD LT
2017-2025 Chevrolet Silverado 2500 HD LTZ
2017-2025 Chevrolet Silverado 2500 HD WT
2021-2025 Chevrolet Silverado 2500 HD Custom
2017-2025 Chevrolet Silverado 3500 HD High Country
2017-2025 Chevrolet Silverado 3500 HD LT
2017-2025 Chevrolet Silverado 3500 HD LTZ
2017-2025 Chevrolet Silverado 3500 HD WT
2017-2025 GMC Sierra 2500 HD Denali
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 2500 HD AT4
2022-2025 GMC Sierra 2500 HD Pro
2024-2025 GMC Sierra 2500 HD AT4X
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2022-2025 GMC Sierra 3500 HD Pro
2024-2025 GMC Sierra 3500 HD Denali Ultimate

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.

Wehrli Billet Exhaust Manifold Kit for 2017-2024 L5P Duramax

Elevate your Duramax's exhaust performance with the Wehrli Billet Exhaust Manifold Kit, designed for 2017-2024 Chevrolet and GMC trucks equipped with the 6.6L L5P engine. This premium kit replaces the stock exhaust manifolds with precision-machined billet components, ensuring superior flow, durability, and performance gains.

Key Features & Benefits:

  • Billet Construction: Machined from solid billet aluminum for exceptional strength, rigidity, and resistance to warping under high temperatures and pressures.
  • Optimized Flow: The billet design promotes smoother exhaust gas flow, reducing backpressure and improving turbocharger spool-up time.
  • Enhanced Durability: Significantly stronger than factory cast manifolds, these billet units are built to withstand the extreme conditions of modified diesel engines.
  • Complete Kit: Includes high-quality gaskets and genuine ARP hardware for a secure and reliable installation.
  • Performance Gains: Improved exhaust flow can lead to noticeable increases in horsepower, torque, and throttle response.
  • Direct Fit for L5P: Engineered specifically for the 2017-2024 6.6L L5P Duramax engine, ensuring proper fitment.

This exhaust manifold kit is an essential upgrade for diesel enthusiasts seeking to push the limits of their L5P Duramax. Experience improved performance, reliability, and a more aggressive exhaust note.

Get the best diesel performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2025 Chevrolet Silverado 2500 HD High Country
2017-2025 Chevrolet Silverado 2500 HD LT
2017-2025 Chevrolet Silverado 2500 HD LTZ
2017-2025 Chevrolet Silverado 2500 HD WT
2021-2025 Chevrolet Silverado 2500 HD Custom
2017-2025 Chevrolet Silverado 3500 HD High Country
2017-2025 Chevrolet Silverado 3500 HD LT
2017-2025 Chevrolet Silverado 3500 HD LTZ
2017-2025 Chevrolet Silverado 3500 HD WT
2017-2025 GMC Sierra 2500 HD Denali
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 2500 HD AT4
2022-2025 GMC Sierra 2500 HD Pro
2024-2025 GMC Sierra 2500 HD AT4X
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2022-2025 GMC Sierra 3500 HD Pro
2024-2025 GMC Sierra 3500 HD Denali Ultimate

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