These full featured OEM fit up pipes are an excellent value! These are brand new and include all the high flow, high quality features your looking for at half of a new GM LB7 up-pipe price.

DHD has taken OEM replacement to a new level. This stock replacement up pipe allow 53% greater flow than stock and is a direct bolt-on to your factory manifolds. Unlike factory parts, our up pipe is manufactured from 11 gauge 304 stainless steel and includes DHD's HD 304 stainless steel, internally-sleeved bellow that can take the abuse of high temperature and high pressures. Our up pipe outweighs the competition by nearly a pound and features internal and external flange TIG welds!

Features:

• Inner and Outer TIG welded Steel Flanges (Not cast like competitor)
• Stainless steel 11-gauge .120-inch wall, 2-inch OD Up-Pipe
• Direct bolt-on replacement to passenger side factory exhaust manifold 
• Significant reduction in exhaust back-pressure
• Lower exhaust temperatures
• Free-flowing stainless steel inner liner bellows

Kit Includes:

• Stainless Multi-layer Up Pipe Gaskets (1 Upper, 1 Lower)
• (6) 12PT Coated M10 12.9 Up-Pipe Bolts

Applications: 

• 2001-2004 LB7 GM 6.6L Duramax 2500HD/3500HD