About CMI

Sign up for the
CMI e-newsletter

Stay up-to-date on new products, promotions and events.


CMI Industrial is proud of its heritage as a designer and manufacturer of top-quality sound and noise attenuation systems that have set the benchmark for quality and innovation. CMI has enjoyed a decades-long leadership position by offering unparalleled products and services, and maintaining industry-leading customer satisfaction.

Visit CMI Industrial

Contact Custom Marine

Custom Marine is represented by many of the premier engine builders and performance marine retailers in the country. If your current dealer does not carry Custom Marine exhaust products, ask them why not.

View Complete Terms, Conditions and Warranty Info

To order a catalog or talk to a Custom Marine sales representative:

Call: 920-720-4225
Fax: 920-722-4530
E-mail: cmiinfo@custommarine.com

Custom Marine Inc
1315 County Road G
Neenah, WI 54956

Download the Custom Marine Catalog:

You can download the Custom Marine Catalog in PDF format (7.9 MB).