Here's a side view of the Wilwood brake caliper, the pads can be pulled out by removing the cotter pin and sliding out. Makes for easy brake work.  If you look into the center cooling area of the rotor you see it looks like a spider web.  this makes them extremely effecient at cooling, but less capable of sincing lots of heat.  these would be best for short tracks where fast cooling is important.
Rear brake assembly with Wilwood 4 piston calipers and Tilton slotted rotors. They are rusty because this was taken after being retired for 10 years.  I have since brushed off these rotors.  I also have several other complete sets of rotors with the same slotting but different weights.
On the fronts you can better see the suspension uses height adjustable coilover springs on modified stock struts. Tokiko struts are mounted in these stock strut cases just like your normal upgrade struts. Both front and rear accept cartridges for easy shock changes.  I have 4 different sets of struts for these with discontinued serial #'s.  The class rules were to use stock sized rotors, these are the same dimater as an 88/89's front rotors.
IMSA BRAKE SYSTEMS