ZZ Diesel High Flow Exhaust Manifolds with Up-Pipes

For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax LB7 LLY LBZ LMM LML

High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock. 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:
    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