I wrote him thru emails a few times and he has always answered my questions and provided information on when his next production run would be if he was out of stock on an item.
His pistons are made with a premium grade of aluminum that should provide longer wear and life over the original factory ones.
Rob. Will you decide to choice which one ? flat piston or dish piston If you use cone glow plug suggest dish piston
if you use std glow plug suggest flat piston not use dish piston because will melt hole piston. Good Luck!