All does anyone know of kp racing pistons? Are they forged? How much power they can hold?

I've recently brought a frst 1.6 cvh. The previous owner wrote in a spec that that car had a cnc head from ferriday engineering and also a set of kp racing pistons. I've also read in a Mag that it was featured in that it had oe zetec pistons! Is that even possible in a 1.6 cvh and whats kp racing pistons? Anyone got a clue what's going on here lol