Both tips are made from 304 stainless steel, and will have the same corrosion-resistance properties. From my understanding, the 2019-2021 Rangers should have an exhaust tailpipe outlet that has a 3" OD, and this tip will be too small to fit over it. In general, the 3" tip is a better option, and if your tailpipe exit is really 2.75", then you should probably have the tip tack-welded to keep it in place.