GM 6.6L Duramax L5P 17-20 OEM Length Replacement High Flow Up-Pipes
50 States Emissions Legal (E.O. Pending)
GM trucks equipped with the L5P diesel are a modern marvel of engineering and design. They're a winning combination: a powerful workhorse, with low emissions, and great styling. Unfortunately, they have been outfitted with undersized, restrictive stock up-pipes.
Now you can upgrade the L5P to achieve higher-flow by bolting on PPE OEM-Length Replacement High-Flow Up-Pipes. These direct replacements have a 46% larger flow area over stock, which results in a deeper-breathing power-plant, while maintaining the mandated Federal emissions standards of stock.
The PPE OEM-Length Up-Pipes are manufactured from 11 gauge 304 stainless steel. These new Up-Pipes include the superior PPE internally-sleeved bellows, also manufactured from 304 stainless steel.
This system is engineered to take the abuse of high temperatures and high pressures, while promoting increased exhaust flow and lower EGTs. A superior product for your modern marvel.
Applications: 2017-2020 GM 6.6L Duramax L5P
Installation Guide: 116122000 OEM Up Pipes GM 6.6L L5P_v2C.pdf
- 46% larger flow area over stock
- Manufactured from 11 gauge 304 stainless steel
- 304 stainless steel, internally-sleeved bellows
- Direct bolt-on replacement
- Includes 301 stainless steel gaskets
GM Equivalent P/Ns: 12676611, 12688021
|Full Dimensions (LxWxH)||18.5" x 10" x 6"|
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov