PPE’s High-Flow Exhaust Manifolds and Up-Pipes increase exhaust flow by 20 percent are 50 state emissions legal. Designed to outlast your truck the manifolds are made from high-quality cast iron and the up pipes are made from stainless steel. Plus the aircraft grade Up-Pipe bellows are high-flow, internally sleeved, and have an increased inner diameter.
- 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 diameter Up-Pipes
- Built in bosses, pre-drilled and tapped 1/8″ NPT for EGT gauge