Mercury Racing is know worldwide for its leadership in powerboat racing and production of high performance consumer and racing marine products, including outboards, stern drives, propellers, parts and accessories using leading edge technology.

Mercury Racing

The 300R FourStroke is the highest performing engine in its class.

The 300R FourStroke is the highest performing engine in its class.

Mercury Pro XS outboards are engineered for the most demanding people on the water—people looking for every advantage they can squeeze out of their equipment. But you don’t have to be a pro to appreciate all Pro XS has to offer. Unmatched speed and acceleration. Legendary reliability. Incredible fuel efficiency.

Those discerning buyers looking for the ultimate power-to-weight advantage of Mercury’s OptiMax low-emissions two-stroke technology turn to Mercury racing. Our Lightweight, high power OptiMax XS series engines were designed for use on high performance Vee-bottom and catamaran sport boats, flats boats, bass boats, walleye boats and offshore center consoles.

The Mercury Racing OptiMax 200 XS continues to demonstrate the extended operating range and durability of Mercury’s two-cycle, direct fuel injection, low-emissions technology, without sacrificing the performance expected from a Mercury racing outboard.

The newest member of the Mercury Racing’s OptiMax family is the 225 Sport XS. Based on the popular OptiMax 225 Pro XS, the 225 Sport XS comes equipped with solid upper and lower mounts and the race-proven 1.62:1 Sport Master gear case, making this outboard capable of powering a single engine, Lightweight hull to speeds in excess of 85 MPH. In June, 2005 the “Sport XS” configuration bested the Yamaha 225 HDPI and Evenrude E-Tec 225 HO in all categories at the 225 shoot-out.



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The OptiMax 250XS has redefined the term “Performance outboard.” Though the world’s fastest low emission two-stroke outboard has set world straightaway speed records, it is better known for its durability and fuel economy than it’s flat out speed. In recent independent tests, the 250XS outperformed the Yamaha 300 HPDI low-emissions outboard in acceleration, top speed and fuel economy. The OptiMax 250XS also won Bass & Walleye Boats Magazine 250 Walleye Shootout, for details see the Bass and Walleye Boats Magazine issue dated August 2006.

Mercury OptiMax RacingThe all-new OptiMax 300XS outboard continues our heritage of delivering more power and performance than competitors with the same horsepower rating. The heart of the new 300XS “Stroker” is a 3.2 Liter V-6 power head featuring a stroked and perecision-ballanced crankshaft for maximum power and Performance. A dampener ensures smooth running throughout the engine operating range. New pistons feature an updated profile and composite coating for improved wear life. Piston ring life is doubled thanks to a composite chrome coating. The exhaust port, combustion chamber and fuel induction designs are direct descendants from out Formula 1 tunnel boat race engine. Airflow through the reed block fuel induction system is enhanced due to an enhanced air box design along with thinner reed material and unique reed shape developed for Formula 1 racing.

As with the complete line of Mercury Racing OptiMax XS outboards, the 300XS comes with a heavy-duty direct fuel injection air oppressors featuring robust maxi-coated mounting brackets and hardware for enhanced compressor durability and reliability.

New 2018 Mercury 300XS Outboards w/JET

New 2018 Mercury 300XS Outboards w/JET

For those of you who are looking for that tunnel race outboard – look towards Mercury Racing’s high revving Champ and OptiMax 200XS SST race outboards that take mortorsports to another extreme -powering lightweight tunnel race boats to speeds in excess of 100 mph as they race across the water on a cushion of air.

The 2.5 Liter Mercury Champ race outboard is the premier power for the champ Boat Series outboard tunnel boat racing circuit. The compact engine spins 8600 rpm to power Champ class tunnel boats to speeds in excess of 130 mph! It has won the grueling 24 hours of Rouen endurance powerboat race in Rouen, France more times than all other outboard competitors combined.