PPE High Flow Exhaust Manifolds & Up Pipes For 17-21 L5P 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, and fuel economy and maintaining reliability.

The kit comes complete with two PPE manifolds, two PPE up-pipes, a PPE downpipe 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
• Up-pipes made from stainless steel 11-gauge .120-inch wall, with a 2-inch outside diameter
• Built-in bosses, pre-drilled and tapped 1/8 NPT for EGT gauge sensor
• Kit includes driver and passenger manifolds, manifold bolts, up-pipes, gaskets and down-pipe support bracket