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PPE High Flow Exhaust Manifolds & Up Pipes For 2001-2004 6.6L LB7 Duramax Diesel

Was: $999.99
Sale: $899.99
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PPE’s Manifolds and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire Manifold and Up-Pipe exhaust system is designed to lower exhaust gas temperatures (EGTs) and accelerate turbo spool-up while increasing power, fuel economy and maintaining reliability. Kit comes complete with two PPE Manifolds, two PPE Up-Pipes, a PPE Down Pipe Support Bracket, PPE 301 Stainless Steel Manifold Gaskets and Up-Pipe Gaskets.



  • Significant reduction in exhaust back-pressure
  • Cast hi-sil moly iron high-flow manifold construction
  • Up-Pipes have free-flowing stainless steel inner liner bellows
  • Built in bosses, pre-drilled and tapped 1/8” NPT for EGT gauge sensor
  • Up-Pipes made from stainless steel 11-gauge .120-inch wall, with a 2-inch outside diameter
  • Kit includes driver and passenger Manifolds, Manifold bolts, Up-Pipes, gaskets and down pipe support bracket



  • 2001-2004 GMC Sierra 6.6L LB7 Duramax
  • 2001-2004 Chevrolet Silverado 6.6L LB7 Duramax


Application Notes:

  • Direct Replacement
  • Fits LB7 Duramax Diesel ONLY
  • 50 States Emissions Legal (E.O. D-701-34)


  • 116111000
  • 116111000
  • 840171208849
  • PPE
  • New

Shipping Information

  • Item Requires Shipping
  • 50.0 lbs.
  • FREE Ground Shipping


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