Wehrli Fab

2006-2007 LBZ Duramax 4" high flow Intake Kit and 3 1/2" Intake Horn for factory turbo.Kit Includes:4" Intake3 1/2" Intake HornDry Air FilterOuterwear's Pre-Filter CoverO-RingSilicone BootT-Bolt ClampsPowder Coating

2004.5-2005 LLY Duramax 4" high flow Intake Kit and 3 1/2" Intake Horn for factory turbo. Must be Used in conjunction with WCFab 3" Y-bridge Kit. Will not work with EGR in place. May work with other bridge kits but we cannot guarantee fitment!

WCFab Billet Upper Valve Cover set with -10AN breather ports on each side.  this setup lessens your crankcase pressure with two #10 breather ports. Includes threaded bosses for injector line hold downs.  PCV breather ports work in conjunction...

Aluminum Upper Coolant Pipe for 2010-2018 6.7L Cummins replaces the OEM rubber upper coolant hose and comes powder coated in your choice of colors! For use with OEM RAM radiator. Aftermarket radiators may cause fitment issues.

Duramax Twin CP3 Pump Controller to operate dual CP3's. 2001-2005 PN: WCF100093 & 2006-2016 PN: WCF100094

2003-2007 Ford 6.0L Powerstroke 4" High Flow Intake Kit for Factory style turbo.

2001-2004 LB7 Duramax 4" high flow intake kit for factory turbo.

4" Intake Kit for Factory Turbo. 

2007.5-2018 6.7 Cummins 4" Intake Kit for Factory Turbocharger. This intake works in-conjunction with the factory turbo. Intake Pipe does not have provisions for OEM CCV line so you must run a CCV reroute kit. If you do not already have a CCV reroute...

2011-2016 LML Duramax 4" Intake Kit for Factory Turbocharger. This intake works in-conjunction with the factory turbo inlet horn.

High Flow Intake Bundle Package for 2001-2004 LB7 Duramax. Saves ~$50.00 vs buying all components individually! EGR Equipped Trucks require additional items, please call.

The WCFab New 4" Cold Air Intake kits for your 03-07 Dodge 5.9L Cummins keep things cool and flowing dramatically better than stock.

2007.5-2010 LMM Duramax 4" high flow intake kit for factory turbo. This Intake is for use with your factory intake horn, or you can purchase the Stage 2 intake kit which includes our 3 1/2" Intake Horn.

2001-2004 LB7 Duramax 4" high flow Intake Kit and 3 1/2" Intake Horn for factory turbo.

4" Intake Kit for Factory Turbo.

2017-2019 L5P Duramax 4" Intake Pipe/Resonator Delete for the Factory Turbo. Dress up your engine bay and remove the plastic turbo resonator box. Will only fit with the OEM air box, NOT COMPATIBLE with the S&B, Banks, or AFE intake kits. No...

2003-2007 5.9L Cummins High Flow 3.5” Intake Horn and Driver Side Intercooler Pipe Kit. Kit replaces the failure prone 3” plastic OEM intercooler pipe with a 3.5” heavy duty 14g Aluminum intercooler pipe and the OEM cast intake horn...

For 1999-2018 Ford and Dodge HD Trucks. Built in house at WCFab carrying a LIFETIME WARRANTY against bending or breaking (to original purchaser). Traction bars are a necessary upgrade when increasing the horsepower on your diesel truck to prevent the...

The LB7 3" Y-Bridge is an upgraded high flow intake bridge for the 2001-2004.5 LB7 Duramax. The OEM LB7 Y-bridge measure’s only 2 3/8” ID, our fabricated bridge is 3" and we use an HD machined beadroll where the T-bolt clamps so there is no...

Built in house at WCFab carrying a LIFETIME WARRANTY against bending or breaking (to original purchaser). Traction bars are a necessary upgrade when increasing the horsepower on your diesel truck to prevent the axle from twisting which can lead to broken...

2001-2007 LB7/LLY/LBZ Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax applications, adding significant strength and reducing driveline flex common to extreme use such as off-roading, pulling, and...