PPE HIGH-FLOW RACE EXHAUST MANIFOLDS WITH UP-PIPES 2001-2004 GM 6.6L DURAMAX (FEDERAL EMISSIONS) (FOR COMPOUND TURBOS)

The PPE 116111100 High-Flow Race Exhaust Manifolds with Up-Pipes for your 2001-2004 GM 6.6L Duramax are designed to maximize power and flow characteristics in your truck. Featuring durable, high flow Up-Pipe bellows that are internally sleeved and aircraft grade with an increased inner diameter which all together increases flow by over 20%. The entire Manifold and Up-Pipe exhaust system is designed to lower exhaust gas temperatures, reduce drive pressure, and accelerate turbo spool-up while maintaining reliability. 

 

• Round pipe for compound turbo applications
• Cast hi-sil moly iron high flow manifold construction
• Significant reduction in exhaust back pressures
• Free flowing Stainless Steel Inner Liner Bellows
• Stainless Steel 11-gauge .120-inch wall diameter Up-Pipes  
• Built in bosses, pre-drilled and tapped 1/8" NPT for EGT gauge sensor