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Part #: PPE116111400

PPE 116111400 High-Flow Exhaust Manifolds with Up-Pipes

2004.5-2005 GM 6.6L Duramax LLY
Part #: PPE116111400
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The PPE 116111400 High-Flow Exhaust Manifolds with Up-Pipes for your 04.5-05 GM 6.6L Duramax LLY increase exhaust flow by 20 percent and are 50 state emissions legal. Designed to outlast your truck the manifolds are made from high-quality cast iron and the up pipes are made from stainless steel. Plus the aircraft grade Up-Pipe bellows are high-flow, internally sleeved, and have an increased inner diameter.

  • CARB E.O. D-701-1
  • Significant reduction in exhaust back pressure
  • Free flowing Stainless Steel Inner Liner Bellows
  • Stainless Steel 11-gauge .120-inch wall diameter Up-Pipes
  • Built in bosses, pre-drilled and tapped 1/8" NPT for EGT gauge 

Application Guide:
2004.5-2005 GM 6.6L Duramax LLY (Federal Emissions)


  • MFG. Number116111400
  • Manufacturer NamePPE
  • Shipping Weight43.00 lb.
  • Shipping Length17 in.
  • Shipping Width23 in.
  • Shipping Height12 in.


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