PPE High Flow Exhaust Manifolds with Up-Pipes (2004.5-2005)

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.
Ceramic-Coated Manifolds option available for the High-Flow Exhaust Manifolds and Up-Pipes Kits - GM 6.6L Duramax

Ceramic coating was pioneered by military and defense industries. Now considered a standard in high-performance applications like Formula 1 and military jet aircraft. This same process is available to you - today.

The Ceramic-Coating option enhances the known benefits of the PPE Manifolds and Up-Pipes Kit which is 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 Manifolds and Up-Pipes system is designed to lower exhaust gas temperatures (EGTs), accelerate turbo spool-up while increasing power, fuel economy and reliability.

Ceramic coating creates a thermal barrier so it doesn’t absorb heat as quickly as raw metal. This reduces the thermal cycle and surface temperature. Ceramic coating promotes greater flow, which means lower exhaust gas temperatures (EGTs). Ceramic coating also offers long-lasting protection against moisture, road salts, oil, fuel, and other corrosive chemicals. Plus, ceramic coating keeps your PPE Manifolds looking great - for a long, long time.

Pick the Ceramic Coating Option to upgrade your Duramax with the superior combination Ceramic Coated Manifolds with 304 Stainless Steel Up-Pipes Kit. (See Drop Down)

Features:

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
Up-Pipes made from stainless steel 11-gauge .120-inch wall, with a 2-inch outside diameter
Built in bosses, pre-drilled and tapped 1/8” NPT for EGT gauge sensor
Kit includes driver and passenger Manifolds, Manifold bolts, Up-Pipes, gaskets and down pipe support bracket
Up-Pipe configuration may vary depending on your model.