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Wehrli Custom Fabrication Billet Exhaust Manifold Kit, 2001-2016 GM 6.6L Duramax

Wehrli Custom Fabrication Billet Exhaust Manifold Kit For 2001-2016 GM 6.6L Duramax
Pricing: $1,329.00
Free Ground Shipping


WCFab’s 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow characteristics, improving turbo spool up, lowering EGTs and increasing power and economy. 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 2000ºF. No tuning required.


➡ Fully TIG Welded, CNC machined billet steel exhaust manifolds
➡ Finished in Black Ceramic Coat rated for 2000ºF
➡ Includes new gaskets for manifold to cylinder head and manifold to up pipe
➡ 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
➡ No tuning required.

Cross References:

Wehrli Custom Fabrication: 100363
DHD: 300-119
HSP: 019-HSP-C
AFE: 46-40024
Rudy's Diesel: MQL.MQR
Banks Engineering: 51007


Shipping Information

  • Item Requires Shipping
  • 27.0 lbs.
  • W9.0000” x H9.0000” x L20.0000”
  • Free Ground Shipping

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