All PPE OEM Up-Pipes create a 53 percent greater flow than stock. The PPE OEM Up-Pipes is a direct bolt-on to your factory manifolds. Unlike factory parts, PPE OEM Up-Pipes are manufactured from 11-gauge 304 stainless steel, and each style includes our stainless steel, internally sleeved bellows that handle the abuse of high temperatures and high pressures.

Note: This product is intended as a replacement for the single up-pipe from the PPE High-Flow Up-Pipe Kit (SKU 116120405).
Features:

• Up-Pipe for 2004.5-2005 GM 6.6L Duramax LLY w/EGR (For OEM Exh Man)
• Direct bolt-on replacement to factory exhaust manifolds
• Significant reduction in exhaust back-pressure
• Free-flowing stainless steel inner liner bellow
• Stainless steel 11-gauge .120-inch wall, 2-inch OD
• Faster turbo response
• Lower exhaust temperatures