I had them, stopped really well until they warped my x drilled & grooved discs

I spoke to a break dealer who said EBC work well but they run too hot. EBC know about this but will not say in public. Consequently the additional heat warps the disc. Mine were crazed like mad, both sides.
Anyway, I changed the discs and went for another make of pads. Not suck impressive breaking but at least my discs are still true! Be warned about EBC pads.