Description:
The PPE 116112000 High-Flow Exhaust Manifolds with Up-Pipes for your 2011-2015 GM 6.6L Duramax increase exhaust flow by 20 percent and 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.