As reported by our friends at www.speedonthewater.com, the headers were developed with help from the Miss GEICO offshore racing team. They were designed to improve engine endurance rather than power. Stainless-steel construction gives them the ability to withstand higher temperatures in the event that an engine is accidentally starved for cooling water.
Evo-X headers made from 316L stainless steel and the mandrel-bent pipes feature CMI’s patented Cool Collar design. They were developed to be direct replacements for the aluminum headers that come on Mercury Racing’s quad-overhead cam engines and come complete with all hardware and required brackets. They even work with existing tailpipes. In addition to being able to withstand more heat, the stainless-steel Evo-Xs will survive better in salt water. Retail price is $16,900 per set. Get more information at www.custommarine.com.
