Quicksilver – Exhaust Manifold Kit | MerCruiser 3.0L Engines | Cast Iron Coated Finish | 860235A03Quicksilver Exhaust Manifold Kit MerCruiser 3. 0L Engines Cast Iron Coated Finish 860235A03 Overview If youve ever pulled an old exhaust manifold off a sterndrive, you know how important a solid replacement really is. Its not glamorous work, but its the kind of maintenance that keeps your boat running strong for years. This Quicksilver exhaust manifold kit brings back that sense of reassurance the feeling that your engine is breathing the way it