The NFB Rack System is 4.0 turn steering for the serious boater. It delivers the precision which made rack & pinion steering famous, and with patented NFB technology, isolates the operator from the considerable steering loads of today?s high horsepower outboards. We?ve designed these new rack systems to fit the popular standard Teleflex rack & pinion dash cutout, so a rack upgrade doesn?t even require dash modification in any form. Back mount design means easy installation. Fits single non-power-assisted out-boards up to V-6; speeds to 50 MPH.