Mercury Racing turns up the volume on outboard performance with its new 450R model, a 4.6-liter V-8 with a supercharger system. This high-performance outboard supersedes, but will not replace, the ...
The new 450R from Mercury Racing features a 4.6-liter V8 powerhead, which is boosted by an exclusive Mercury Racing supercharger to produce 450 peak propshaft horsepower and 40 percent higher torque ...
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