HIGH FLOW EXHAUST MANIFOLD AND UPPIPES KIT SILVERADO/SIERRA 6.6L L5P RAW

The PPE High-Flow Exhaust Manifold is constructed from high-sil moly cast iron, while the accompanying Up-Pipe bellows are internally-sleeved and crafted from aircraft-grade 304 stainless steel with an increased inner diameter for superior flow. This entire exhaust system is engineered to optimize power and flow characteristics, reduce exhaust gas temperatures (EGTs), and accelerate turbo spool-up, ultimately enhancing power, fuel economy, and reliability. An optional ceramic coating, initially developed for military and defense applications, is available. This ceramic coating acts as a thermal barrier, slowing heat absorption, reducing thermal cycling, and lowering surface temperatures. It further improves flow, leading to even lower EGTs, and provides durable protection against moisture, road salts, oil, fuel, and other corrosive chemicals. This product is 50 States Emissions Legal (E.O. D-701-34).