Why are people looking for the sawblades?

[8cam]

Originally Posted by MuRCieLaGo

I wonder if their design *really* improve braking...

Not really evidence one way or another, but I have the sawblades on my car and after running them hard on the track, zero heat or fade issues. The brakes were absolutely just as strong on the last lap of the day as they were at the beginning. So they can't hurt!