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. These DHD OEM Up-Pipes allow 53% greater flow than stock. DHD OEM Up-Pipes are a direct bolt-on to your factory manifolds. Unlike factory parts, DHD Up-Pipes are 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 pipes outweigh the competition by nearly a pound and features internal and external flange TIG welds.
Inner and Outer TIG welded Flanges
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
Stainless Multi-layer Up Pipe Gaskets (1 Upper, 1 Lower)
(6) 12PT Coated M10 12.9 Up-Pipe Bolts
2001-2004 LB7 GM 6.6L Duramax 2500HD/3500HD
* Note: LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.