Fits: 2004.5 thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY Duramax Diesel

PPE has taken OEM replacement to a new level. All PPE OEM Up-Pipes allow 53% greater flow than stock. PPE OEM Up-Pipes are a direct bolt-on to your factory manifolds. Unlike factory parts, PPE OEM Up-Pipe are manufactured from 11-gauge 304 stainless steel and includes our superior PPE 304 stainless steel, internally-sleeved bellow that can take the abuse of high temperature and high pressures.

Features:

• 46% larger flow area over stock 
• Manufactured from 11 gauge 304 stainless steel 
• 304 stainless steel, internally-sleeved bellows 
• Direct bolt-on replacement 
• Includes 301 stainless steel gaskets 
• Works correctly with all emissions controls intact
• 50 States Emissions Legal (E.O. D-701-33)

Note:

• Pipe diameter is slightly larger than OEM.