PPE High Flow Exhaust Manifolds With Up Pipes For 2004.5-2005 GM LLY Duramax

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:

• Significant reduction in exhaust back-pressure
• Cast hi-sil moly iron high-flow manifold construction
• Up-Pipes have free-flowing stainless steel inner liner bellows
• Built in bosses, pre-drilled and tapped 1/8 NPT for EGT gauge sensor
• Up-Pipes made from stainless steel 11-gauge .120-inch wall, with a 2-inch outside diameter
• Kit includes driver and passenger Manifolds, Manifold bolts, Up-Pipes, gaskets and down pipe support bracket

Fitment:

• 2004.5-2005 GMC Sierra 6.6L LLY Duramax
• 2004.5-2005 Chevrolet Silverado 6.6L LLY Duramax

Notes:

• Fits 6.6L LLY Duramax Models ONLY