MTI 390X Race For Sale

The MTI 390XR is the race-spec variant of the 390X Cat, a 39-foot outboard catamaran stripped and reinforced for competitive use. Where the 390X RP balances comfort with speed, the 390XR optimises every detail for lap times and poker-run performance. The 450 Stock designation references the Mercury 450R outboards run in stock-class configuration.nnThe hull shares the same 39.4-foot length and 10-foot-6-inch beam as the standard 390X, with identical vacuum-infused composite and carbon-fibre construction. What changes is the interior: race harnesses replace standard seating, weight-saving measures strip non-essential trim, and the rigging is configured for rapid refuelling and engine access during competition stops.nnTwin Mercury 450R outboards provide the power, running in configurations that comply with stock-class racing rules. Performance in race trim exceeds 100 mph, and MTI’s championship pedigree shows in the hull geometry, tunnel design, and pad configuration that extract maximum speed from the available horsepower.nnEach 390XR is built to order at the Wentzville facility with race-specific equipment, safety gear, and electronics. The 390XR targets a specific buyer: someone already active in competitive powerboat events who wants MTI’s engineering advantage in the outboard catamaran classes.