Over-Sized Port Stainless Steel Exhaust Manifold Gasket Set 2 Pcs PPE Diesel LBZ / LMM Duramax " That must be purchases seperatley

That must be purchases seperatley if you don't already have one (pn 98602)

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Over-Sized Port Stainless Steel Exhaust Manifold Gasket Set 2 Pcs PPE Diesel LBZ / LMM Duramax " That must be purchases seperatleyCreates a tight seal between the Exhaust Manifolds and 6. 6L GM Duramax engine. Two piece set features multi layered 304 stainless steel. PPE Manifold Gaskets are designed to fit both PPE High Flow Exhaust Manifolds and GM OEM manifolds. Features: High Performance Manifold Gaskets For Oversize Ports (46. 8mm x 41. 0mm) Multi Layered 304 Stainless Steel Sold As A Set (2) Applications: 2001 2016 GM 6. 6L Duramax LB7 LLY LBZ LMM (118062020)