Wehrli 01-16 Chevrolet 6.6L Duramax 2in Stainless Driver Side Up Pipe w/Gaskets (Single/Twin Turbo)

If you're dealing with a cracked or leaking driver side up pipe on your 2001-2016 Chevrolet or GMC 6.6L Duramax, replacing it with a heavy-duty stainless steel unit is a smart move. This Wehrli Custom Fab up pipe is built to last, addressing the common failure point of the stock component. It's designed to work with factory exhaust manifolds or Wehrli's own billet manifolds, offering a solid upgrade for your truck's exhaust system.

This up pipe is constructed from 11-gauge stainless steel and features a robust bellows design that won't crack like the original equipment. The larger 2-inch diameter can help increase turbo spool-up and potentially lower Exhaust Gas Temperatures (EGTs), especially when paired with other exhaust modifications. It's a well-built part that's fully TIG welded for strength and durability, ensuring it can handle the demands of a diesel engine. This pipe is compatible with single or compound turbo setups, making it a versatile option for many Duramax owners.

When installing this on an LMM Duramax (2007.5-2010), you'll need a coolant bypass or relocation fitting, sold separately. It's important to note that this part is not CARB approved and cannot be shipped to California. This up pipe replaces several GM part numbers, including 98066019 and 12637379.