Hydraulic Clutch Master Cylinder.

FYI: if you get the kit, you don't need to attach the push rod to the stock location on the clutch pedal. I simply mocked it up and came straight in from the firewall to the clutch pedal, made a mark, took the pedal out and drilled my new attaching point. Some people seem to think you absolutely have to attach it to the stock location, I called American Power Train and talked to a tech. He said as long as the rod is straight in and out of the master cylinder your good.

Little more to it than that. You have to make sure you attach it to a point on the pedal where it will still create enough stroke/piston travel in the master cylinder. Otherwise it won't move enough fluid to actuate the throw out bearing.

But as long as the piston moves enough fluid, no, it doesn't have to be at the stock pivot location.