PPE’s Manifold and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are high flow, 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. Designed for closed course racing vehicles not to be used on the street.
NOTICE: LMM trucks require heater modifications on driver’s side. Call for details.
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
Available for: 2001-2015 Duramax 6.6L
UPC Company Prefix: 81050502
UPC Code – 14: 00810505024865, 00810505024988
UPC Code – 12: 810505024865, 810505024988
Factory manufacturing process leaves the Up-Pipe bellows’ inside liner significantly undersized and deformed causing excessive restriction. PPE’s bellows are larger in diameter by 37% providing increased flow.