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PPE Race High Flow Exhaust Manifolds With Up-Pipes For Chevy GMC 01-04-116111000
Product Description
Part Number Fits:
High Flow Exhaust Manifolds with Up-Pipes
50 States Emissions Legal
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.
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.
Features
▪ 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
