2011-2016 Duramax 2" Stainless Steel Up Pipe Kit For OEM Or Manifolds W/ Gaskets (WCF100197)

Heavy-duty 2" stainless up pipe kit for the 2011-2016 LML Duramax, replacing the thin 16-gauge, 1-5/8" factory pipes that crack at the bellows and leak. Both driver and passenger pipes are 11-gauge TIG-welded stainless with heavy-duty bellows, and the kit works with either the factory manifolds or Wehrli's billet manifolds (WCF100363).

The larger pipes improve exhaust flow to the turbo, which brings spool-up sooner and drops EGTs, so it suits heavy towing trucks as well as builds running a bigger turbo with emissions-compliant tuning. The EGR connection is a ductile iron casting with an EGT sensor port. Compatible with OEM and Wehrli down pipes. Five gaskets (up pipe and EGR cooler) are included and no tuning is required.

Part Number: WCF100197

• Fully TIG-welded 11-gauge stainless steel construction
• Heavy-duty 2" driver side and passenger side up pipes
• Heavy-duty stainless bellows that will not crack like OEM
• Ductile iron cast EGR connection with EGT sensor port
• Fits OEM manifolds or Wehrli billet manifolds (WCF100363)
• Compatible with OEM and Wehrli turbo down pipes
• Includes up pipe and EGR cooler gaskets (5 pieces)
• No tuning required
• Made in USA

• Passenger side pipe only is available as WCF100211.
• Optional ARP up pipe bolt kit: WCF100240 (one kit per pipe).

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