Design your custom MTI with TNT Custom Marine today! The MTI Outboard X-Series boasts many of the sought-after features of our larger models, including six comfortable bucket seats with ample legroom, a spacious wraparound windshield, and plenty of storage lockers. Despite its compact size, it delivers the exhilarating ride and feel of its bigger counterparts. Equipped with twin Mercury Racing outboards, this boat effortlessly glides onto plane with minimal throttle. Push the throttles forward, and you’ll cruise at an impressive 80 MPH while enjoying an outstanding 2.5 MPG. When the conditions are right and you're ready for more, there’s additional throttle available to exceed the 100 MPH mark. Known for exceptional handling, these outboard cats can take sharp turns while staying level. With all these features and reliable outboard engines, the 340X and 390X truly redefine the essence of pleasure boating. Experience it for yourself by taking a test ride and see why MTI outboard cats are quickly becoming the preferred choice for many.

MTI 390X 2026

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Sold Listing: Design your custom MTI with TNT Custom Marine today! The MTI Outboard X-Series boasts many of the sought-after features of our larger models, including six comfortable bucket seats with ample legroom, a spacious wraparound windshield, and plenty of storage lockers. Despite its compact size, it deliv…

2026 MTI 390X (Sold)

Just Sold2026 MTI 390X

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