I'm going to have it done when my transmission is rebuilt, gears/syncros/needle bearing/ring/pinion/input shaft/hub sleeve
What is essentially does is strengthen the metal while making micro dimples to hold oil for less friction, all while not changing the dimensions. It's used in pretty much all forms of motorsports and can be applied to almost any engine component as well (pistons, journals, crank, oil gears, cams, valves etc).
Here's an example:
This post was edited by Decom on May 19 2013 01:42pm