CMI Straight Back Sweeper Headers for Mercury 525-700 Engines - 6" Taller, Leaned 

The all polished, 6” taller, straight back CMI Sweeper style are a superior long tube header designed for both racing or any high-performance application. These leaned, taller headers are commonly used in custom or staggered setup Mercury 525-700 series motors. These headers feature the CMI Flex Flare Tailpipe Connection. For big-block applications, where maximum scavenging and horsepower are required, CMI Sweeper headers deliver peak performance and power from naturally aspirated engines. Leaned for Staggered Engine Applications.