…Or other non-tremolo style guitar? These Stetsbar Tremolo systems retrofit onto your guitar with no modification needed (yes we sell them too)! Drop right in , and you have instant tremolo (and sustain). Add a new bone nut to lose that annoying ‘string -ping’. Cut it carefully with a little more angle on the back side for the D and G (try to follow the string path best possible). You can easily use the stock nut to line up your string to string spacing as pictured.