• PPE HIGH-FLOW EXHAUST MANIFOLDS WITH UP-PIPES - SILVER 116111235 | 2002-2004 6.6L Duramax LB7
  • PPE HIGH-FLOW EXHAUST MANIFOLDS WITH UP-PIPES - SILVER 116111235 | 2002-2004 6.6L Duramax LB7
  • PPE HIGH-FLOW EXHAUST MANIFOLDS WITH UP-PIPES - SILVER 116111235 | 2002-2004 6.6L Duramax LB7
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Pacific Performance Engineering

PPE HIGH-FLOW EXHAUST MANIFOLDS WITH UP-PIPES - SILVER 116111235 | 2002-2004 6.6L Duramax LB7

PPE HIGH-FLOW EXHAUST MANIFOLDS WITH UP-PIPES - SILVER 116111235 | 2002-2004 6.6L Duramax LB7

116111235

$1,292.38 USD

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While many of our products are stocked in our warehouse, inventory levels can change quickly. If you need to confirm availability before placing your order, please call or text 970-778-0792.

Replace the restrictive factory exhaust manifolds and up-pipes on your GM 6.6L Duramax LB7 with the PPE 116111235 High-Flow Exhaust Manifolds & Up-Pipes. Engineered to improve exhaust flow, reduce backpressure, and increase turbocharger efficiency, this premium exhaust system is designed to deliver improved performance, lower exhaust gas temperatures, and enhanced reliability.

The high-flow manifolds are constructed from durable high-silicon moly cast iron and paired with heavy-duty stainless steel up-pipes featuring aircraft-grade internally sleeved bellows. The larger internal diameter and free-flowing design help maximize exhaust flow, improve turbo spool-up, and support increased horsepower and fuel efficiency.

To further improve thermal management and durability, the manifolds and up-pipes feature a silver ceramic coating. Originally developed for military and aerospace applications, ceramic coating creates a thermal barrier that helps retain exhaust heat within the system while reducing surface temperatures and thermal cycling. The coating also provides long-lasting protection against moisture, road salts, fuel, oil, and other corrosive contaminants.

Features:

  • Silver ceramic coated finish
  • Significantly reduces exhaust backpressure
  • High-silicon moly cast iron manifold construction
  • Improves turbocharger spool-up and exhaust flow
  • Helps reduce exhaust gas temperatures (EGTs)
  • Supports increased horsepower and fuel efficiency
  • Aircraft-grade stainless steel internally sleeved bellows
  • Free-flowing stainless steel inner liner bellows
  • 11-gauge stainless steel up-pipes with .120-inch wall thickness
  • 2-inch outside diameter up-pipes
  • Built-in bosses pre-drilled and tapped for 1/8" NPT EGT sensors
  • Enhanced corrosion resistance and heat protection

Fitment:

  • 2001–2004 GM 6.6L Duramax LB7

Important Notes:

  • PPE 117000400 3" Stainless Steel Downpipe is required for installation.
  • The factory downpipe is not compatible with this system.
  • Cannot be shipped to California.
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