Quick Ship
Expert Pick
SKU #: PPE-117000400 MPN #: 117000400

PPE 3" Stainless Down Pipe 01-04 GM 6.6L Duramax LB7

$170.99
Get 170 points in loyalty rewards
Description Overview
Would you drink a milkshake through one of those little coffee stir-style straws you get at the gas station or church? Of course not! You want a straw that's going to deliver that chocolate goodness in a hurry and without a lot of effort. So why are you still forcing your turbo to use a small flat downpipe in your LB7? It wants to move air and be efficient, but that crushed looking pipe isn't letting it breathe easy. PPE has the solution with their Stainless Downpipe for the 01-04 LB7 Duramax. Crafted from 304 Stainless for longevity and reliability and formed with a clean lined flange to a smooth proper round tube for more efficient airflow. Let your turbo breathe easier, and keep your under-hood temperatures down, as the PPE unit is also wrapped in a titanium woven thread for superior heat protection for your other components.And in this case, our friends from California can benefit too, as there is a California specific Downpipe for you all too.Please make sure you select the option noting if your vehicle was originally built as a California specific vehicle, which would include an EGR system, or a Federal (non-California) vehicle.
federal or california truck

Product photos may not match the selected option. Please confirm your choice before adding to cart.

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

A 304 stainless downpipe for the 01-04 LB7 Duramax, built with a smooth round tube and clean-lined flange for improved airflow.

Fits
2001-2004 6.6L GM Duramax LB7
Brand
PPE (Pacific Performance Eng.)
Best for
Improving turbo exhaust airflow and reducing under-hood heat
Key features
  • Made from 304 stainless steel for longevity and reliability
  • Smooth, proper round tube shape for more efficient airflow
  • Clean lined flange design
  • Wrapped in titanium woven thread for superior heat protection
Important
Must select the option noting whether your vehicle was built as a California-specific (with EGR) or Federal (non-California) vehicle.

Summarized by AI from this product’s description and specs. Confirm fitment for your year, make and engine before ordering.

Would you drink a milkshake through one of those little coffee stir-style straws you get at the gas station or church? Of course not! You want a straw that's going to deliver that chocolate goodness in a hurry and without a lot of effort. So why are you still forcing your turbo to use a small flat downpipe in your LB7? It wants to move air and be efficient, but that crushed looking pipe isn't letting it breathe easy. PPE has the solution with their Stainless Downpipe for the 01-04 LB7 Duramax. Crafted from 304 Stainless for longevity and reliability and formed with a clean lined flange to a smooth proper round tube for more efficient airflow. Let your turbo breathe easier, and keep your under-hood temperatures down, as the PPE unit is also wrapped in a titanium woven thread for superior heat protection for your other components.

And in this case, our friends from California can benefit too, as there is a California specific Downpipe for you all too.

Please make sure you select the option noting if your vehicle was originally built as a California specific vehicle, which would include an EGR system, or a Federal (non-California) vehicle.
EXECUTIVE ORDER #D-701-36
Manuals and Guides
Vehicle Fitment
2001-2004 6.6L GM Duramax LB7
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
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.

Overall rating: 5.0 / 5 from 2 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["sounds"].

Review highlights

Reviews

Works great! Egt’s are actually

"Works great! Egt’s are actually lower than before, and my truck sounds wicked now! Highly recommend!"

— JULIAN V. (5/5)

Sounds great

"Went in pretty easy and really helped with boost, and turbo sound."

— Joel O. (5/5)

Q&A

What's the difference between the non California and the California pipe?
The bolt pattern is going to be different between the federal/california emissions.
Does this product come with new hardware?
This does not, it would reuse the factory hardware.
The down pipe comes with the round gasket, that I’m assuming goes where the down pipe meets the exhaust, do I need a gasket where it bolts up to the turbo? Never pulled a down pipe before. new to this
Tat downpipe does not come with the gasket at the turbo end.