Heavy Duty Exhaust Manifold 1991-1995 YJ Wrangler; w/ 4.0L Engine; Includes Exhaust Gasket (S-6218G); Heavy Duty Version; Produced with Superior Stainless Steel, Welding and Exhaust Flow. 4883385HD Heavy Duty Exhaust Manifold 1991 1995 YJ Wrangler 1997 1999 TJ Wrangler w 4 0L Engine Includes Exhaust Gasket S 6218G Heavy Duty