PPE High Flow Exhaust Manifolds With Up Pipes For 2004.5-2005 GM LLY Duramax 2011-2014-6.7l-powerstroke aimed at reducing pressure –

aimed at reducing pressure – However this also reduces flow

Built to MBRP’s highest Armor Pro standards

You will get a 10psi inner spring and a 35 psi outer spring

premature wear or breakage

PPE High Flow Exhaust Manifolds With Up Pipes For 2004.5-2005 GM LLY Duramax 2011-2014-6.7l-powerstroke aimed at reducing pressure –PPEs Manifolds and Up Pipes are designed to maximize power and flow characteristics. The Up Pipe bellows are internally sleeved, made from aircraft grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire Manifold and Up Pipe exhaust system is designed to lower exhaust gas temperatures (EGTs) and accelerate turbo spool up while increasing power, fuel economy and maintaining reliability. Kit comes complete