Fit's will and flow is much improved
"Highly recommend"
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SKU #: PPE-116112535
MPN #: 116112535
PPE High Flow Exhaust Manifolds with Up-Pipes 17-25 Duramax L5P
Description
Replace and upgrade your exhaust manifold and up-pipes in your L5P Duramax with these PPE High-Flow Manifolds made from cast, high-sil moly. The PPE 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 maximize power and flow characteristics, lower exhaust gas temperatures (EGTs) and accelerate turbo spool-up while increasing power, fuel economy, and maintain reliability.
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 existing benefits of the PPE Manifolds and Up-Pipes Kit which is specifically designed to maximize power and flow characteristics. Ceramic coating creates a thermal barrier and doesn’t absorb heat as quickly as raw metal. This reduces the thermal cycle and surface temperature. Ceramic coating promotes even 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. Choose the Ceramic Coating Option added to your PPE Manifolds and upgrade your GM 6.6L Duramax with the superior combination of PPE Manifolds with 304 Stainless Steel Up-Pipes Kit.
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FEATURES & BENEFITS:
- 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
About PPE (Pacific Performance Eng.)
Browse PPE Diesel Parts Online by Make, Model, and Year.
Originally founded in 1985, Pacific Performance Engineering (PPE) is leading the way in the progression of diesel performance. Their roots started them in the diesel performance industry installing other manufacturers kits and components, which led to the release of their original product, the Duramaximizer, in 2001 to improve upon the power and efficiency of the LB7 Duramax, and is still in use today. Today, they are known for manufacturing dual CP3 kits, their line of Xcelerator programmers for numerous applications, upgraded oil pans, and nearly anything you can think of to improve the power and extend the life of your Duramax, Cummins or Powerstroke.
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Overall rating: 4.375 / 5 from 8 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["quality"].
Review highlights
Reviews
Manifold and Up pipe replacement
"One of the most frustrating projects I have done to date. So many broken bolts; even with the use of penetrating oils. Broken up pipe bolts at the turbo housing forced a turbo removal to get the turbo pedestal out. Once the broken bolts were removed and the pedestal re installed access to install the up pipes was a breeze. Heat shields went in easier. But the manifold allen head bolts we a hole new nightmare. I had to go by a 6 mil allen socket that was longer in order to clear the larger diameter exhaust manifolds. The 3 page instructions were only for the manifold work itself. You will need to do some research or experimentation to get things out of the way for this job. All in all the time spent vs the gains of this system are probably not worth it. But since my factory manifold failed on the drivers side this entire kit was a cost effective repair vs dealer items."
Nice parts
"These parts are super high quality. Very nice finish. Difficult install would definitely recommend removing the cab if possible"
Great quality at a good
"Great quality at a good price"
I had to modify a
"I had to modify a few things to make this work. Typical ppe, they're machine work is a little off. Thankfully I have access to a metal lathe and all the tools needed. As for the functionality of the parts installed, happy with the results. Lowered EGTs as expected."
Overall Good Kit
"Doesn’t come with up pipe bolts. Doesn’t come with all new manifold nut spacers. Only comes with 6 for some reason. Quality seems very good for the manifolds and up pipes. I cut the heat shield brackets off the up pipes and wrapped them in heat wrap. Makes for an easier install. Wish the passenger side manifold didn’t have the egr port at all. Would be cleaner."
Fixed my squealing under boost
"Great fit! Was missing a few bolts but not a big deal. Also I can run tune 5 and keep my EGTS in check when I would see 1800’ before. So far I am happy with them."
Perfect fit and sound
"They do exactly what they say "high flow""
Q&A
- Do you need a "tune kit" to run these or will it work with no issues in an OEM setup ?
- While not necessary these will change flow characteristics and a tune will defiantly maximize potential. Thanks for asking.
- What hardware comes with this
- This kit includes the following : A: (2) Manifolds (L and R) B: (1) EGR Gasket C: (2) Manifold Gaskets D: (2) Up-Pipes (L and R) E: (2) Upper Up-Pipe Gaskets F: (2) Lower Up-Pipe Gaskets (L and R) G: (6) Spacers H: (6) M8 Socket Head Cap Screws I: (9) M6 Flange Head Hex Screws J: (10) M8 Studs, Black Oxide K: (10) M8 Flange Nuts, Black Oxide
- Will these manifolds and up pipes make a real difference if the truck is not deleted
- Those manifolds will lower drive pressures a bit which can help with EGT's and mileage a bit.