The MTI 390X translates decades of offshore competition into a catamaran sized for the way owners actually run. At 39.4 feet with a 10-foot-6 beam, it carves turns with authority and holds a level, composed attitude at speed — the handling signature that made MTI a championship name.
outboard performance
outboard motor options
beam length 10’ 6”
adults
powered by Mercury Racing
Twin Mercury Racing 400 or 500 outboards give the 390X its character — immediate response, confident acceleration, and control that holds through hard turns. Power is matched to the hull rather than layered on top of it, so speed arrives without drama.
The result is a catamaran that stays composed at every point on the throttle, whether running offshore or holding station at the sandbar.
Twin Mercury Racing 400 or 500 outboards deliver proven reliability and the immediate throttle response this hull is engineered around.
Speeds beyond 110 mph, achieved through hull efficiency and precise weight balance rather than brute force.
Carried as 75 gallons per side, positioned low and centered to preserve the boat's level running attitude.
Sportmaster lower units transfer power cleanly at speed, engineered for sustained high-velocity running.
The 390X cockpit is arranged for owners who run hard and stay out long. Six to eight bucket seats provide generous leg room, while a wrap-around windshield channels air up and over the cockpit. Storage lockers are integrated throughout, keeping gear secured and the deck clear.
The 390X cockpit is arranged for owners who run hard and stay out long. Six to eight bucket seats provide generous leg room, while a wrap-around windshield channels air up and over the cockpit. Storage lockers are integrated throughout, keeping gear secured and the deck clear.
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Hull & Deck
Cockpit
Explore a select collection of pre-owned MTI models, meticulously maintained and ready to perform.
This is a custom fitted cradle that bolts to a lift. It is made to fit the bottom of any MTI sv42. This is a much safer way to hoist this type of boat.
Cradle that bolts to lift to hoist MTI 340x. It lifts in the center of tunnel. It may work with other models, but measure yours to make sure.