High Performance Custom Marine Inc CMI Elbow Top Marine Headers:

West Coast Offshore carries all the CMI Elbow Top Headers including Big Block Chevrolet Headers in Polished or Platinum finish and Small Block Ford and Chevrolet Headers in Polished finish.

More About CMI Elbow Top Headers:

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 Elbow Top (E-Top) Headers for their engines more than any other brand.

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

Standard CMI Elbow Top systems can be ordered with a wide range of CMI Tailpipes or CMI “Sound Choice” selectable silencer system

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