Cooling ducts for front discs

[Ripper]

Depends on what you use the car for? I would say for street use, it would not be necessary (but then again, 13" rotors are also too much on the street IMO). If you autocross your car/race it or whatever, go for it!
Those track days I've participated in, I've never had any problems with overheated brakes, and I actually think I could step down to 12" discs (and save some weight!) without any problems!



if you go to my website, and click on suspension & front brakes you could see the cooling. After that, click on exterior & front mods (and scroll down) and you should be able to see where I take the cooling air from.

Good luck!