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  • Wehrli 3.5in Down Pipe fits 2021-2025 Chevrolet Silverado 2500 Hd 6.6L L5P DURAMAX / 2017-2025 Chevrolet Silverado 3500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 2500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 3500 Hd 6.6L L5P DURAMAX
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Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe - Main Product View
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe - Side View
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe - Back View
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe - Installation View
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Wehrli 3.5in Down Pipe fits 2021-2025 Chevrolet Silverado 2500 Hd 6.6L L5P DURAMAX / 2017-2025 Chevrolet Silverado 3500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 2500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 3500 Hd 6.6L L5P DURAMAX

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

Wehrli
WCF100129
In stock
$345.00 USD $334.99 USD

NOT CARB LEGAL

$334.99 USD
Wehrli 3.5in Down Pipe fits 2021-2025 Chevrolet Silverado 2500 Hd 6.6L L5P DURAMAX / 2017-2025 Chevrolet Silverado 3500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 2500 Hd 6.6L L5P DURAMAX / 2020-2025 GMC Sierra 3500 Hd 6.6L L5P DURAMAX
Description
Replace the restrictive crushed factory down pipe on your 2017-2025 L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates with OEM exhaust system front pipe with the 4 bolt style flange connection. Black Ceramic Coated and Heat wrapped. Down Pipe includes bungs for sensors and NO tuning required to use this down pipe. WCFab piping kits and emissions compliant tuning recommended for optimum performance gains.

This Part Fits:

Year Make Model Submodel
2021-2025 Chevrolet Silverado 2500 HD Custom
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
2024-2025 Chevrolet Silverado 2500 HD ZR2
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
2020-2025 GMC Sierra 2500 HD AT4
2024-2025 GMC Sierra 2500 HD AT4X
2017-2021 GMC Sierra 2500 HD Base
2017-2025 GMC Sierra 2500 HD Denali
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2022-2025 GMC Sierra 2500 HD Pro
2017-2025 GMC Sierra 2500 HD SLE
2017-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2017-2021 GMC Sierra 3500 HD Base
2017-2025 GMC Sierra 3500 HD Denali
2024-2025 GMC Sierra 3500 HD Denali Ultimate
2022-2025 GMC Sierra 3500 HD Pro
2017-2025 GMC Sierra 3500 HD SLE
2017-2025 GMC Sierra 3500 HD SLT
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