Coleman poweresports in NC is who I ahve used to ake my replacement rotors. They are cheap and effective. They also have many options you can add to your rotors. I paid around $1,400 for my last set of four rotors. You do have to resue your hat. They only make the rotors.

 

My feeling is that the suspension is so stiff that you will never notice the motor mounts...the brakes on the other hand are something you notice every day! I've got well over 50k mi and a lot of track days on mine with no issues. As long as you changes the pads early and often they will last a very long time!

 

I think there are better braking options for Speed Test a track car and the benefits of DEM would be a better option.