High Performance Custom Marine Inc CMI Fusion Elbow Top Marine Headers:

West Coast Offshore carries all the CMI Fusion Elbow Top Marine Headers including Big Block Chevrolet Headers in Polished or Platinum finish with polished Collector and Tailpipe, and Small Block Ford and Chevrolet Headers in Polished finish and polished Collector and Tailpipe.

More About CMI Fusion Elbow Top Headers:

CMI Fusion Headers features polished elbow collector and tailpipes attached to satin finished primary tubes.

CMI Elbow Top Headers are direct-replacement headers designed for most stock cast manifolds. The best stern drive manufacturers and engine builders wanting to optimize performance of small and big block marine engines prefer CMI Fusion Elbow Top Headers for their engines more than any other brand.

CMI Fusion Header Systems offer separated exhaust passages and long individual exhaust tube runners that minimize cylinder to cylinder influence while improving exhaust scavenging, which allows the engine to breathe more freely as well as generate the most power. Every header features a non-adjustable, permanently attached, exhaust tailpipe configured to meet exact specifications for standard transom layouts and thru-hull exhaust tip placements.

All CMI Fusion Elbow Top Header system include rubber water distribution tubes, cooling water inlet fittings, cooling water bypass couplings on the collector elbow, hose fittings for bypassing, cap screws, gaskets for exhaust ports, and hose clamps needed for almost any installation.

CMI Fusion Elbow Top Systems may be purchased with Stainless Steel distribution tube upgrade.

Tailpipes are not required for CMI Fusion Header Systems.

  • Designed for engines generating up to 750 HP
  • Standard versions designed to fit stock Mercury bravo exhaust exit locations
    *** custom fit applications also available ***
  • Performance gains in Horsepower and Torque
  • Integrated Tail eliminates tailpipe clamps and gaskets
  • Features satin primary tubes and a polished elbow collector fused with a polished tailpipe
  • 316L stainless steel offers supreme durability

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