Why CMI®

The top choice for world class boat manufacturers, the US Military and many others, we have a solution for your idea. At CMI®, we combine premium engineering, metal fabrication, precision laser cutting and electronics to deliver products the competition can’t touch. 


High performance marine, stainless steel exhaust – uniform water jacketed tubes for optimum temperature control, standard marine configurations or any custom setup needed

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Wake Enhancement

Wake plates, bow control, ballast plumbing, hydraulic actuators with position feedback – custom wave shaping devices

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Production OEM components for large or small projects, with high or low volume in any combination of materials and finishes

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Surf Pipes

Safely direct exhaust gas down into the propellor wash but still leave a clean surf wave or wake and keep engine exhaust noise at a reasonable level.

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Exhaust Tips

Custom Marine has the metal forming and engineering capabilities to create mufflers and transom tips of all shapes and sizes, with or without flappers, available in polished or satin finish.

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Structural components, diesel exhaust, davit base, gun mounts, grab rails, radar towers and more – built to specifications – Custom Marine helps keep the military running

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Replacement OEM v-band clamps, gaskets, swim step brackets, thrusters, muffler rebuild kits, hose clamps, flappers, brackets, distribution tubes, fittings and transom rings

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Stock Mercury racing configurations and custom made to order tailpipes to fit any application, available in polished, satin or powdercoated finishes

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See how Custom Marine can get your products to the next level.

Career Opportunities

We’re hiring Welders/Fabricators, Press Brake Operators, CNC Machinists, CNC Programmers, Laser Operators, Polishers, and General Laborers. Please click the button to learn more.

How Can CMI® Help

  • Production OEM components
  • Large or small projects
  • High or low volume
  • Moving parts with position feedback
  • Any combination of metal, plastics and urethane
  • Finishes available: polished, satin, paint, tumbled, plated

Custom Marine can put it all together and get your project over the finish line.

News & Events


New Orleans, LA Morial Convention Center  Nov 29 – Dec 1, 2023 Custom Marine: booth 1362 Livorsi Marine: booth 1360 https://www.navalengineers.org/Symposia/MACC2023

Dealer Week 2023

Tampa Convention Center  December 4-7, 2023  https://www.dealerweek.com/

PowerGen show

New Orleans, LA New Orleans Louisiana Convention Center  January 23-25, 2024 https://www.powergen.com/welcome

IBEX show

Tampa, FL Tampa Convention Center September 27-29, 2023 https://www.ibexshow.com/

Stay Up to Date

Stay up to date with the latest new product releases and upcoming tradeshows!

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