Big tube header-13680

These “Big Tubes” offer a large 2.25″ primary, straight back superior long tube header designed for both racing or any high-performance application. These straight, taller headers are commonly used in custom high horsepower builds. These headers feature the CMI Big Tube Flex Flare Tailpipe Connection. For big-block applications, where maximum scavenging and horsepower are required, CMI Big Tubes headers deliver peak performance and power from naturally aspirated engines. The headers can be built to your custom measurements based on your motor.