CMI Evo-X Headers

Custom Marine Inc.’s Evo-X stainless-steel headers are available for Mercury Racing 1,100, 1,350, 1,550 and 1,650 hp engines.

CMI Evo-X Headers
The stainless-steel CMI Evo-X headers will outlive the aluminum versions on Mercury Racing engines.Custom Marine Inc.

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.