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USD 309.43 309.43 333.68
Part #:

Wehrli Custom Fab WCF100682 3.5" Cold Side Intercooler Pipe

Vehicle Fitment:
2011-2016 GM 6.6L Duramax LML | See full application list below
Part #:
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The Wehrli Custom Fab WCF100682 3.5" Cold Side Intercooler Pipe from XDP replaces the factory plastic two-piece pipe on your 2011-2016 GM 6.6L Duramax LML with a 3.5” high-flow, 14-gauge aluminum one piece pipe. This part is specifically designed to increase airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. The pipe incorporates upgraded silicone boots to withstand higher boost pressures than the factory components. This helps increase reliability and eliminate weak points in the factory design that can lead to boost leaks or complete failures in hard-working and high-performance applications.

This pipe is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. Installs easily with basic hand tools. Finished in your choice of custom powder-coat colors to make your engine compartment stand out from the crowd.

  • 3.5” Cold Side Intercooler Pipe
  • 14-Gauge Aluminum Construction
  • Compatible With OEM Y-Bridge/Cross Over Pipe
  • No Tuning Required, Complete Bolt-On Installation
  • Large Selection Of Durable Custom Powder-Coat Finishes
  • Will Fit On Stock Truck No Other Modifications Or Upgrades Necessary
  • Incorporated Threaded Bung To Reinstall OEM Intake Temperature Sensor
  • OEM Clip Ring Design Replaced By High-Quality Silicone Boot And Stainless Steel T-Bolt Clamps For Improved Sealing And Ability To Hold Higher Boost Pressures Without Leaking
  • Made In USA

2011-2016 Chevrolet Silverado 2500HD (6.6 Duramax LML)
2011-2016 Chevrolet Silverado 3500HD (6.6 Duramax LML)
2011-2016 GMC Sierra 2500HD (6.6 Duramax LML)
2011-2016 GMC Sierra 3500HD (6.6 Duramax LML)
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Vehicle Fitment

2011 Chevy 6.6L LML Duramax
2012 Chevy 6.6L LML Duramax
2013 Chevy 6.6L LML Duramax
2014 Chevy 6.6L LML Duramax
2015 Chevy 6.6L LML Duramax
2016 Chevy 6.6L LML Duramax
2011 GMC 6.6L LML Duramax
2012 GMC 6.6L LML Duramax
2013 GMC 6.6L LML Duramax
2014 GMC 6.6L LML Duramax
2015 GMC 6.6L LML Duramax
2016 GMC 6.6L LML Duramax

Product Options

WCF100682-BB Bengal Blue
WCF100682-BC Bronze Chrome
WCF100682-BR Bengal Red
WCF100682-CB Candy Blue
WCF100682-CP Candy Purple
WCF100682-CR Candy Red
WCF100682-CT Candy Teal
WCF100682-FB Flat Black
WCF100682-FTB Fine Texture Black
WCF100682-GB Gloss Black
WCF100682-GRY WCFab Grey
WCF100682-GW Gloss White
WCF100682-IP Illusion Purple
WCF100682-RED WCFab Red
WCF100682-SGB Semi-Gloss Black


  • ID 129677
  • Manufacturer Name Wehrli Custom Fab
  • Shipping Weight 8.00 lb.
  • Shipping Length 32 in.
  • Shipping Width 12 in.
  • Shipping Height 12 in.
  • Fuel Type Diesel
  • E-Code 4
  • Warranty Info 1 Year
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Cross Reference # 22737494, 20930188, 23421455, 84094727
  • Internal LR


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