Shop

Description

WCFab’s 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 WCFab’s 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 2000 deg F.
Wehrli Custom Fab Exhaust Manifold Kit, Billet w/ Gaskets & Hardware, 01-16 Duramax, Blk Ceramic

• Includes ARP 12PT Fasteners and washers for installation to cylinder head. Up pipe fastener kits sold separately as part WCF100240.
• 1/8 NPT ports (and optional plugs) included in driver and passenger side manifold for installation of EGT or drive pressure sensors
• Includes new gaskets for manifold to cylinder head and manifold to up pipe
• Fully TIG Welded, CNC machined billet steel exhaust manifolds
• Finished in Black Ceramic Coat rated for 2000 deg F

Fitment:
Chevrolet Silverado 2500 HD Base 2001
Chevrolet Silverado 2500 HD Base 2002
Chevrolet Silverado 2500 HD Base 2003
Chevrolet Silverado 2500 HD Base 2004
Chevrolet Silverado 2500 HD Base 2005
Chevrolet Silverado 2500 HD Classic LS 2007
Chevrolet Silverado 2500 HD Classic LT 2007
Chevrolet Silverado 2500 HD Classic WT 2007
Chevrolet Silverado 2500 HD High Country 2015
Chevrolet Silverado 2500 HD High Country 2016
Chevrolet Silverado 2500 HD LS 2001
Chevrolet Silverado 2500 HD LS 2002
Chevrolet Silverado 2500 HD LS 2003
Chevrolet Silverado 2500 HD LS 2004
Chevrolet Silverado 2500 HD LS 2005
Chevrolet Silverado 2500 HD LS 2006
Chevrolet Silverado 2500 HD LT 2001
Chevrolet Silverado 2500 HD LT 2002
Chevrolet Silverado 2500 HD LT 2003
Chevrolet Silverado 2500 HD LT 2004
Chevrolet Silverado 2500 HD LT 2005
Chevrolet Silverado 2500 HD LT 2006
Chevrolet Silverado 2500 HD LT 2007
Chevrolet Silverado 2500 HD LT 2008
Chevrolet Silverado 2500 HD LT 2009
Chevrolet Silverado 2500 HD LT 2010
Chevrolet Silverado 2500 HD LT 2011
Chevrolet Silverado 2500 HD LT 2012
Chevrolet Silverado 2500 HD LT 2013
Chevrolet Silverado 2500 HD LT 2014
Chevrolet Silverado 2500 HD LT 2015
Chevrolet Silverado 2500 HD LT 2016
Chevrolet Silverado 2500 HD LTZ 2007
Chevrolet Silverado 2500 HD LTZ 2008
Chevrolet Silverado 2500 HD LTZ 2009
Chevrolet Silverado 2500 HD LTZ 2010
Chevrolet Silverado 2500 HD LTZ 2011
Chevrolet Silverado 2500 HD LTZ 2012
Chevrolet Silverado 2500 HD LTZ 2013
Chevrolet Silverado 2500 HD LTZ 2014
Chevrolet Silverado 2500 HD LTZ 2015
Chevrolet Silverado 2500 HD LTZ 2016
Chevrolet Silverado 2500 HD WT 2004
Chevrolet Silverado 2500 HD WT 2005
Chevrolet Silverado 2500 HD WT 2006
Chevrolet Silverado 2500 HD WT 2007
Chevrolet Silverado 2500 HD WT 2008
Chevrolet Silverado 2500 HD WT 2009
Chevrolet Silverado 2500 HD WT 2010
Chevrolet Silverado 2500 HD WT 2011
Chevrolet Silverado 2500 HD WT 2012
Chevrolet Silverado 2500 HD WT 2013
Chevrolet Silverado 2500 HD WT 2014
Chevrolet Silverado 2500 HD WT 2015
Chevrolet Silverado 2500 HD WT 2016
Chevrolet Silverado 3500 Base 2001
Chevrolet Silverado 3500 Base 2002
Chevrolet Silverado 3500 Base 2003
Chevrolet Silverado 3500 Base 2004
Chevrolet Silverado 3500 Base 2005
Chevrolet Silverado 3500 Classic LS 2007
Chevrolet Silverado 3500 Classic LT 2007
Chevrolet Silverado 3500 Classic WT 2007
Chevrolet Silverado 3500 HD High Country 2015
Chevrolet Silverado 3500 HD High Country 2016
Chevrolet Silverado 3500 HD LT 2007
Chevrolet Silverado 3500 HD LT 2008
Chevrolet Silverado 3500 HD LT 2009
Chevrolet Silverado 3500 HD LT 2010
Chevrolet Silverado 3500 HD LT 2011
Chevrolet Silverado 3500 HD LT 2012
Chevrolet Silverado 3500 HD LT 2013
Chevrolet Silverado 3500 HD LT 2014
Chevrolet Silverado 3500 HD LT 2015
Chevrolet Silverado 3500 HD LT 2016
Chevrolet Silverado 3500 HD LTZ 2007
Chevrolet Silverado 3500 HD LTZ 2008
Chevrolet Silverado 3500 HD LTZ 2009
Chevrolet Silverado 3500 HD LTZ 2010
Chevrolet Silverado 3500 HD LTZ 2011
Chevrolet Silverado 3500 HD LTZ 2012
Chevrolet Silverado 3500 HD LTZ 2013
Chevrolet Silverado 3500 HD LTZ 2014
Chevrolet Silverado 3500 HD LTZ 2015
Chevrolet Silverado 3500 HD LTZ 2016
Chevrolet Silverado 3500 HD WT 2007
Chevrolet Silverado 3500 HD WT 2008
Chevrolet Silverado 3500 HD WT 2009
Chevrolet Silverado 3500 HD WT 2010
Chevrolet Silverado 3500 HD WT 2011
Chevrolet Silverado 3500 HD WT 2012
Chevrolet Silverado 3500 HD WT 2013
Chevrolet Silverado 3500 HD WT 2014
Chevrolet Silverado 3500 HD WT 2015
Chevrolet Silverado 3500 HD WT 2016
Chevrolet Silverado 3500 LS 2001
Chevrolet Silverado 3500 LS 2002
Chevrolet Silverado 3500 LS 2003
Chevrolet Silverado 3500 LS 2004
Chevrolet Silverado 3500 LS 2005
Chevrolet Silverado 3500 LS 2006
Chevrolet Silverado 3500 LT 2001
Chevrolet Silverado 3500 LT 2002
Chevrolet Silverado 3500 LT 2003
Chevrolet Silverado 3500 LT 2004
Chevrolet Silverado 3500 LT 2005
Chevrolet Silverado 3500 LT 2006
Chevrolet Silverado 3500 WT 2004
Chevrolet Silverado 3500 WT 2006
GMC Sierra 2500 HD Base 2002
GMC Sierra 2500 HD Base 2003
GMC Sierra 2500 HD Base 2004
GMC Sierra 2500 HD Base 2005
GMC Sierra 2500 HD Base 2015
GMC Sierra 2500 HD Base 2016
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 2007
GMC Sierra 2500 HD Denali 2011
GMC Sierra 2500 HD Denali 2012
GMC Sierra 2500 HD Denali 2013
GMC Sierra 2500 HD Denali 2014
GMC Sierra 2500 HD Denali 2015
GMC Sierra 2500 HD Denali 2016
GMC Sierra 2500 HD SL 2001
GMC Sierra 2500 HD SL 2002
GMC Sierra 2500 HD SL 2006
GMC Sierra 2500 HD SLE 2001
GMC Sierra 2500 HD SLE 2002
GMC Sierra 2500 HD SLE 2003
GMC Sierra 2500 HD SLE 2004
GMC Sierra 2500 HD SLE 2005
GMC Sierra 2500 HD SLE 2006
GMC Sierra 2500 HD SLE 2007
GMC Sierra 2500 HD SLE 2008
GMC Sierra 2500 HD SLE 2009
GMC Sierra 2500 HD SLE 2010
GMC Sierra 2500 HD SLE 2011
GMC Sierra 2500 HD SLE 2012
GMC Sierra 2500 HD SLE 2013
GMC Sierra 2500 HD SLE 2014
GMC Sierra 2500 HD SLE 2015
GMC Sierra 2500 HD SLE 2016
GMC Sierra 2500 HD SLT 2001
GMC Sierra 2500 HD SLT 2002
GMC Sierra 2500 HD SLT 2003
GMC Sierra 2500 HD SLT 2004
GMC Sierra 2500 HD SLT 2005
GMC Sierra 2500 HD SLT 2006
GMC Sierra 2500 HD SLT 2007
GMC Sierra 2500 HD SLT 2008
GMC Sierra 2500 HD SLT 2009
GMC Sierra 2500 HD SLT 2010
GMC Sierra 2500 HD SLT 2011
GMC Sierra 2500 HD SLT 2012
GMC Sierra 2500 HD SLT 2013
GMC Sierra 2500 HD SLT 2014
GMC Sierra 2500 HD SLT 2015
GMC Sierra 2500 HD SLT 2016
GMC Sierra 2500 HD WT 2003
GMC Sierra 2500 HD WT 2004
GMC Sierra 2500 HD WT 2005
GMC Sierra 2500 HD WT 2006
GMC Sierra 2500 HD WT 2007
GMC Sierra 2500 HD WT 2008
GMC Sierra 2500 HD WT 2009
GMC Sierra 2500 HD WT 2010
GMC Sierra 2500 HD WT 2011
GMC Sierra 2500 HD WT 2012
GMC Sierra 2500 HD WT 2013
GMC Sierra 2500 HD WT 2014
GMC Sierra 3500 Base 2002
GMC Sierra 3500 Base 2003
GMC Sierra 3500 Base 2004
GMC Sierra 3500 Base 2005
GMC Sierra 3500 Classic SL 2007
GMC Sierra 3500 Classic SLE 2007
GMC Sierra 3500 Classic SLT 2007
GMC Sierra 3500 Classic WT 2007
GMC Sierra 3500 HD Base 2015
GMC Sierra 3500 HD Base 2016
GMC Sierra 3500 HD Denali 2011
GMC Sierra 3500 HD Denali 2012
GMC Sierra 3500 HD Denali 2013
GMC Sierra 3500 HD Denali 2014
GMC Sierra 3500 HD Denali 2015
GMC Sierra 3500 HD Denali 2016
GMC Sierra 3500 HD SLE 2007
GMC Sierra 3500 HD SLE 2008
GMC Sierra 3500 HD SLE 2009
GMC Sierra 3500 HD SLE 2010
GMC Sierra 3500 HD SLE 2011
GMC Sierra 3500 HD SLE 2012
GMC Sierra 3500 HD SLE 2013
GMC Sierra 3500 HD SLE 2014
GMC Sierra 3500 HD SLE 2015
GMC Sierra 3500 HD SLE 2016
GMC Sierra 3500 HD SLT 2007
GMC Sierra 3500 HD SLT 2008
GMC Sierra 3500 HD SLT 2009
GMC Sierra 3500 HD SLT 2010
GMC Sierra 3500 HD SLT 2011
GMC Sierra 3500 HD SLT 2012
GMC Sierra 3500 HD SLT 2013
GMC Sierra 3500 HD SLT 2014
GMC Sierra 3500 HD SLT 2015
GMC Sierra 3500 HD SLT 2016
GMC Sierra 3500 HD WT 2007
GMC Sierra 3500 HD WT 2008
GMC Sierra 3500 HD WT 2009
GMC Sierra 3500 HD WT 2010
GMC Sierra 3500 HD WT 2011
GMC Sierra 3500 HD WT 2012
GMC Sierra 3500 HD WT 2013
GMC Sierra 3500 HD WT 2014
GMC Sierra 3500 SL 2001
GMC Sierra 3500 SL 2002
GMC Sierra 3500 SL 2006
GMC Sierra 3500 SLE 2001
GMC Sierra 3500 SLE 2002
GMC Sierra 3500 SLE 2003
GMC Sierra 3500 SLE 2004
GMC Sierra 3500 SLE 2005
GMC Sierra 3500 SLE 2006
GMC Sierra 3500 SLT 2001
GMC Sierra 3500 SLT 2002
GMC Sierra 3500 SLT 2003
GMC Sierra 3500 SLT 2004
GMC Sierra 3500 SLT 2005
GMC Sierra 3500 SLT 2006
GMC Sierra 3500 WT 2004
GMC Sierra 3500 WT 2005
GMC Sierra 3500 WT 2006