116120405 | PPE Performance OEM Length Replacement High Flow Up-Pipe Kit (2004.5-2005 Silverado, Sierra 2500 HD, 3500 HD 6.6L td)

Features:

• 46% larger flow area over stock 
• High-flow design for smooth, unobstructed airflow
• Manufactured from premium stainless steel
• Three-layer internally sleeved exhaust bellow
• Stainless steel gaskets included
• Direct bolt-on replacement

Replacement High Flow Up-Pipe Kit

The undersized OEM up-pipes are not corrosion resistant and introduce restrictions to the system, impairing turbo charger efficiency and increasing pumping loss. The PPE High-Flow Up-Pipes tackled these issues with a stainless-steel construction and a non-restrictive design. By enlarging the OEM bottle neck and eliminating the tight bends, PPE up-pipes can increase exhaust airflow by up to 46%, allowing for a smooth exhaust process.

These up-pipes are a direct bolt-on to your OEM exhaust manifolds. Replacement up-pipe gaskets are also included for a hassle-free installation.