2001-2016 GM 6.6L Duramax PPE High-Performance Manifold Oversize Port (46.8mm X 41.0mm) Gaskets (2 pcs) - Pacific Performance Engineering - 118062020

Creates a tight seal between the Exhaust Manifolds and 6.6L GM Duramax engine. Two piece kit features multi-layered 301 stainless steel, PPE Manifold Gaskets are designed to fit both PPE High-Flow Exhaust Manifolds and GM OEM manifolds.