The photo that you've shown of the brake disc looks different than mine. Who is the manufacturer of this disk.
different company other than stoptech?

 

This is the third set up that I've used from Brake Performance on different cars and Iam very satified with the quality.

 

In a related vid to the one ubad posted, we have our engineering dude back:

 

For the reasons cited, slotted rotors are the only aftermarket rotors I use. The exception is, I would consider rotors with holes that are cast into the rotor rather than drilled. This significantly reduces the risk of heat cycle fracturing. Aftermarket rotors, though, rarely have cast holes.

 

Looks Aside. How is the performance on normal/hard driving?