This Sonic is something special! The engine info has been provided by the seller. Triple 575SCI - 700+ HP. All-updated exhaust, hydraulic roller cams, new super chillers, and Hardin marine intercooler strainers, new Hardin sea strainers. Drives totally gone through, has imco extensions boxes, new Mercury HP transom assemblies, upgraded Mercury Bravo 34 pitch propellers...too much to list. This boat is 9 out of 10. 100 mph owner never fully opened it up since the upgrades. It has never been left in the water overnight, always lift kept with full cover. It is always flushed with s...