PPE OEM Length Replacement High Flow Up-Pipes for 2017-2021 Chevy/GMC 6.6L Duramax L5P 116122000

Part# 116122000
$299.99 Now $269.99
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4 In Stock


Not Available to Ship to California



Product Description

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.

Key Features

  • Direct bolt-on replacement to factory exhaust manifolds
  • Significant reduction in exhaust back-pressure
  • 46% larger flow area over stock
  • 304 stainless steel, internally-sleeved bellows
  • Manufactured from 11 gauge 304 stainless steel
  • Faster turbo response
  • Lower exhaust temperatures
  • Kit includes driver and passenger Up-Pipes and PPE 301 Stainless Steel Up-Pipe Gaskets
  • 50 States Emissions Legal (E.O. D-701-33)
  • Replacement for GM Equivalent P/Ns: 12676611, 12688021



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.