Nice, didn't realize DPI had a wilwood kit out. That's awesome; I love their stuff. I have a similar setup on my front brakes:
Attachment 49133
You'll definitely notice a huge difference in braking performance; much stiffer and more reactive brake pedal! [emoji106]
Be sure to go through the brake rotor burnishing and pad bedding process. My new rotors came zinc plated and the wear in process removes that coating over the first few times driving with the new rotors. Those look to be powder coated or painted so you'll have to go through that process while it wears off.
http://www.wilwood.com/TechTip/TechPadBedTip.aspx http://www.wilwood.com/TechTip/TechRotorTip.aspx