PPE High-Flow Exhaust Manifolds with Up-Pipes

PPE’s High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock and are 50 State emissions legal.
PPE Manifolds are made from high-quality cast iron and the Up Pipes are made from 11 gauge 304 stainless steel. The aircraft grade 304 stainless steel Up-Pipe bellows are high-flow, internally sleeved, and have an increased inner diameter.

Features:
•CARB E.O. D-701-1
•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


Application Guide:
2001 GM 6.6L Duramax LB7 (California Emissions)
01-04 GM 6.6L Duramax LB7 (Federal Emissions)