KNUCKLE LH

Flow Torque Dana Marine exhaust systems are high quality cast aluminum direct replacement exhaust systems for your stock or mild performance marine engine. Dana Marine Exhaust offers several different riser styles to fit their manifolds, you’ll be assured to find a system to fit your boat. Modeled after the historic Nicson exhaust manifold system, Dana Marine Products systems use scavenging technology for optimum performance. All systems come polished but are also available powdercoated for an additional charge. Optional hard anodizing available for salt water applications is available. This Flow Torque Dana Marine Exhaust system fits most silent choice and many “S” pipe applications. Two chamber aluminum risers have a 3.5″ ID and accept 4″ hose. Kit includes all necessary gaskets, fittings, and mounting bolts. Black or Polished standard.