FOND DU LAC, Wis. (June 18, 2019) – The new Mercury Racing 450R outboard is purpose designed for the high-performance disciple craving unrelenting power. Steeped in Mercury Racing DNA, the 450R features a 4.6-liter V8 FourStroke powerhead boosted by an exclusive Mercury Racing supercharger to produce 450 peak propshaft horsepower and 40 percent higher torque than the powerful 400R. At over 300 pounds lighter than the nearest competitor, the new 450R delivers industry leading power-to-weight in a compact, efficient package.…