2017-2025 Duramax Billet Exhaust Manifold w/ 2" Up-Pipe (WCF100226)

This Wherli exhaust manifold kit with up-pipes are the perfect replacement for your restrictive OEM cast components. Featuring TIG-welded high-flow billet steel, engineered to increase turbo spool, exhaust flow, lower EGTs, and improve overall engine performance.

Part Number: WCF100226

• Fully TIG Welded, CNC machined billet steel exhaust manifolds
  
• Finished in Black Ceramic Coat rated for 1800ºF
  
• Includes new gaskets for manifold to cylinder head, EGR flange, and manifold to up pipe
  
• Includes ARP 12PT Fasteners and washers for installation to cylinder head
  
• 1/8 NPT port (and optional plug) included in driver side manifold for installation of EGT or drive pressure sensor
  
• Includes ARP Up Pipe Bolt Kit
  
• Passenger Side Up Pipe
  
• Driver Side Up Pipe
  
• Up Pipe Gaskets (4)
  
• No tuning required

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