Miami’s exodus125 makes these custom titanium (!) fire pistons himself. They’re pricey, and in point of fact there’s not much need for titanium (!) in this application when aluminum works just as well and costs way, way less, but still: Titanium! Besides its well-known physical properties–lightweight, noncorroding, and extremely tough–titanium (!) has also been proven to cloud the minds of otherwise rational consumers like me, inducing irrational bouts of spending accompanied by mild ptyalism.