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

PPE’s Manifolds and Up-Pipes are designed to maximize power and flow characteristics.

The Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire Manifold and Up-Pipe exhaust system is designed to lower exhaust gas temperatures (EGTs) and accelerate turbo spool-up while increasing power, fuel economy and maintaining reliability.

Kit comes complete with two PPE Manifolds, two PPE Up-Pipes, a PPE Down Pipe Support Bracket, PPE 301 Stainless Steel Manifold Gaskets and Up-Pipe Gaskets.

Features:

• Cast Hi-Sil Moly iron high-flow manifold construction
• Significant reduction in exhaust back pressure
• Free-flowing stainless steel inner liner bellows
• Stainless steel 11-gauge .120-inch wall, with a 2" outside diameter Up-Pipes
• Built in bosses, pre-drilled and tapped 1/8" NPT for EGT gauge
• Works correctly with EGR and all emissions intact
• 50 States Emissions Legal, E.O No. D-701-19