2018 Quintrex 530 Cruiseabout Bowrider powered by a 21L 115hp 4-cyl EFI Mercury 4-Stroke outboard engine showing only 156 hours. Selling my beloved haines signature bowrider with a massive 90hp mercury 4stroke engine this boat has not let me down within the time i have owned it i am the. The manufacturer named her the Select Executive and she has all the attributes to provide a heart racing boating experience.