Improve boat performance when towing skiers, tubes or wakeboards with these automatic trim tabs.Improve boat performance the easy way with a set of automatic, self-adjusting trim tabs. Compared to conventional hydraulic trim tabs, these are much easier to install—since there is no hydraulic pump to power or hydraulic tubes to run through the transom. Benefits include improving fuel economy by up to 11%, reducing bow rise by up to 40%, and lowering on-plane speed by up to 35%. Porpoising and chine walking are reduced for a smoother ride and improved handling in any water conditions.Assembly can be completed in seconds and the installation in a few minutes. The only tools required are a drill with a 3/16" bit and a Phillips screw driver.Select Smart Tabs according to your boat's size, engine type and horsepower. For help, see theNauticus Trim Tab Selector.Key FeaturesImprove fuel economy by up to 11%Reduce porpoising and chine walkingEasy installation only requires are a drill with a 3/16" bit and a Phillips screw driverReduce bow rise by up to 40%Lower on-plane speed by up to 35%