Walker's new Everquiet Air Filter product line is specially designed for today’s modern engines. They are the perfect compliment to any engine not [Walker Everquiest Air Filter Silencer] equipped with an AIRSEP. Each unit adds high performance air filtration and a helps reduction intake or turbo noise typically by 5dBa to 10dBa. The robust housings are metal and designed for years of trouble free service in the tough marine environment. The air filter element is removable so cleaning or replacement is easy and fast. First issued as a factory upgrade option for the higher horsepower engines, a retrofit unit is now available for any diesel engine currently in service. The unit replaces the plastic or disposable stock element often delivered with the engine. This unit represents the latest in engineered air flow systems, and will deliver years of optimized performance from your engine whether used for commercial fishing, high speed pleasure-craft, or luxury yacht applications. Available for MAN, CAT, MTU, Cummins, Yanmar, Deutz and many others.