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

CMI Introduces 496 Sport Tube Performance Package

CMI 496 Sport Tube Package

New package makes enhancing overall performance easier than ever before.

Download this Media Release (DOC format)
Access Hi-Res Images for this Media Release

NEENAH, WI -- July 7, 2005 -- Custom Marine Inc (CMI) has announced the introduction of a new custom exhaust package specifically designed to enhance the overall performance of any sport boat equipped with a propulsion system powered by a 496 engine. Equipping an engine with the exclusive CMI stainless steel 496 Sport Tube™ Performance Package is sure to attract attention at any dock. But it's on the water where this package will really turn heads. Simply adding this package to any stock 496 will result in adding nearly 60 more horsepower, boost mid-range torque by nearly 14 percent, boost fuel economy across the power curve and improve the engine's overall running quality.

"With the introduction of the 496 Sport Tube Performance Package CMI can address the needs of a very key segment of the performance boating marketplace," said Joe Zelinski, founder and president of CMI. "Until now, installing headers on a 496 package required having a machine and parts shop close by to create the necessary components required to make room for headers. With the CMI 496 Sport Tube Performance Package, performance enthusiasts can simply order our complete, easy-to-install kit."

The CMI 496 Sport Tube Performance Package comes complete with a pair of water-cooled headers made of 316-series polished stainless steel and required mounting hardware. Also included is CMI's exclusive 496 Relocation Kit, which includes all brackets, hoses and hardware needed to make relocation of select engine components easier and create adequate room for CMI's high-tech tube-style headers. Stock CMI tailpipes designed to fit a transom hole layout that is consistent with a standard Mercrusier® Bravo Drive transom hole pattern completes the 496 Sport Tube Performance Package.

The CMI 496 Sport Tube Performance Package is designed for application on all 496 engines.

About CMI

Custom Marine is an industry-leading manufacturer and marketer of OEM and aftermarket exhaust headers, exhaust systems and components designed for any recreational and high-performance marine application. CMI's combination of engineering, manufacturing and design excellence allow the company to deliver products that offer the superior quality, performance and stunning good looks every performance-minded boater demands.

Media Contact:

Chris Morth
Custom Marine Inc.

Mercruiser® Bravo Drive is a trademark of Brunswick Corporation.