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Custom Marine Inc

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1315 County Road G
Neenah , WI 54956
United States
Booth #3361

Custom Marine Inc

For more than two decades, Custom Marine stainless steel exhaust systems have been skillfully-built to exact standards. This has made us the number one choice for offshore racers and performance-oriented boaters who demand superior on-water performance. CMI offers performance stainless steel water jacketed exhaust headers, tailpipes, diesel exhaust risers, mufflers, sea strainers, other exhaust components as well as machining and brake press capabilities. Common material used is 316/304 stainless steel, duplex 2205, titanium and aluminum.

At CMI, we work with the most respected marine engine manufacturers, OEM boat builders and distributors in the world who place their trust in CMI to ensure their products deliver the performance and quality their customers demand.

Our industry-leading technologies and race-proven products have earned us a place in the winner’s circle on race circuits worldwide. But it’s our reputation for delivering high-quality performance products that has earned long-term relationships with the customers we serve.


Boat Building Supplies

  • Boat Building Supplies

Propulsion / Power

  • Exhaust Systems
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