Wehrli Custom Fabrication (WCFab) is a premier manufacturer of high-performance automotive parts and custom fabrication solutions, specializing in turbo systems, intercoolers, intake systems, and exhaust components. Known for their precision and attention to detail, WCFab products are designed to enhance engine performance, boost efficiency, and improve overall vehicle dynamics. Proudly made in the USA, Wehrli Custom Fabrication combines top-quality materials and advanced manufacturing techniques to deliver durable, reliable components built to withstand the toughest conditions.
WCFabs 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility with OEM style up pipes and are designed to be paired with WCFabs 2 Stainless High-Flow Up Pipes (sold separately) for optimized performance. Includes new gaskets, ARP 12PT fasteners, and assembly lube for easy install (up pipe fastener kits sold separately). Finished in Black Ceramic Coat rated for 2000ºF.
This Part Fits:
Fitment Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016.
WCFabs 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility with OEM style up pipes and are designed to be paired with WCFabs 2 Stainless High-Flow Up Pipes (sold separately) for optimized performance. Includes new gaskets, ARP 12PT fasteners, and assembly lube for easy install (up pipe fastener kits sold separately). Finished in Black Ceramic Coat rated for 2000ºF.
This Part Fits:
Year | Make | Model | Submodel |
---|---|---|---|
2001-2005 | Chevrolet | Silverado 2500 HD | Base |
2015-2016 | Chevrolet | Silverado 2500 HD | High Country |
2001-2006 | Chevrolet | Silverado 2500 HD | LS |
2001-2016 | Chevrolet | Silverado 2500 HD | LT |
2007-2016 | Chevrolet | Silverado 2500 HD | LTZ |
2004-2016 | Chevrolet | Silverado 2500 HD | WT |
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 |
2004,2006 | Chevrolet | Silverado 3500 | WT |
2007 | Chevrolet | Silverado 3500 Classic | LS |
2007 | Chevrolet | Silverado 3500 Classic | LT |
2007 | Chevrolet | Silverado 3500 Classic | WT |
2015-2016 | Chevrolet | Silverado 3500 HD | High Country |
2007-2016 | Chevrolet | Silverado 3500 HD | LT |
2007-2016 | Chevrolet | Silverado 3500 HD | LTZ |
2007-2016 | Chevrolet | Silverado 3500 HD | WT |
2002-2005,2015-2016 | GMC | Sierra 2500 HD | Base |
2011-2016 | GMC | Sierra 2500 HD | Denali |
2001-2002,2006 | GMC | Sierra 2500 HD | SL |
2001-2016 | GMC | Sierra 2500 HD | SLE |
2001-2016 | GMC | Sierra 2500 HD | SLT |
2003-2014 | GMC | Sierra 2500 HD | WT |
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 |
2002-2005 | GMC | Sierra 3500 | Base |
2001-2002,2006 | GMC | Sierra 3500 | SL |
2001-2006 | GMC | Sierra 3500 | SLE |
2001-2006 | GMC | Sierra 3500 | SLT |
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 |
2015-2016 | GMC | Sierra 3500 HD | Base |
2011-2016 | GMC | Sierra 3500 HD | Denali |
2007-2016 | GMC | Sierra 3500 HD | SLE |
2007-2016 | GMC | Sierra 3500 HD | SLT |
2007-2014 | GMC | Sierra 3500 HD | WT |
Fitment Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016.
- CARB:
- This product is not CARB Legal and not for sale in California
- Category:
- Exhaust, Mufflers & Tips>Headers & Manifolds
- Core:
- N
- Core Price:
- 0
- LTL:
- N
- MPN:
- WCF100363
- Proposition 65:
- Y