Which brand(s) of rotors resist / disperse heat the best ?

[Ursatdx]

Based on your two examples, the OE rotors 2x as long as the aftermarkets.

That would be true if I the front (OEM) rotors did not have to be replaced due to warping.

 

[slacktide_bitog]

Powerstop Geomet coated rotors or any other rotors that have the Geomet coating

 

[930.engineering]

PFC

 

[mightymousetech]

Heat does not warp rotors. Even with extensive track use and the rotors are literally glowing red, they don’t warp. It is caused by either uneven pad deposits which will unevenly heat the rotor (think hot-cold around the rotor) or unevenly torqued wheel bolts/nuts. A higher carbon content rotor will be stronger and resist warping better. At Honda we would see warped rotors almost daily, have never seen it at BMW.