PPE Race Exhaust Manifold w/ Up-Pipes Single Turbo 01-10 LB7/LLY/LBZ/LMM Non EGR D-Pipe View larger



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PPE Race Exhaust Manifold w/ Up-Pipes

2001-2004 GM 6.6L Duramax LB7* (See Description)

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The PPE 116111000 High-Flow Exhaust Manifolds with Up-Pipes for your 01-04 GM 6.6L Duramax LB7 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: 
2001 GM 6.6L Duramax LB7 (California Emissions)
01-04 GM 6.6L Duramax LB7 (Federal Emissions) 

Factory manufacturing process leaves the Up-Pipe bellows’ inside liner significantly undersized and deformed causing excessive restriction. PPE’s bellows are larger in diameter by 37% providing increased flow. 

Vehicle Applications:

Race Single Turbo 01-10 LB7/LLY/LBZ/LMM Non EGR  D-pipe