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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.

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CMI Small Block Headers

CMI Small Block Headers

CMI's new Small Block Headers are a cut above the rest. These performance headers increase horsepower 10+ and improve fuel consumption. Small Block headers boost mid-range torque by a whopping 15%, giving you an advantage over other boaters.

This system incorporates CMI's patented "Cool Collar" design that keeps headers cool to the touch and "Flex Flare" connections for easy installation. Headers are constructed of 316L stainless steel for the utmost durability and are available fully polished or with a satin finish.

Package comes complete with all required mounting hardware. Headers include a one year limited warranty.

Dyno Data

Part #: 13157 - Polished
Part #: 13156 - Satin