Anyone here ever cross drilled their stock rotors ?
#5
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
Drilled rotors doesn't work as well as slotted. Drilled will give you more surface area at the cost of reduced swept area. The idea is the increased surface area will help cooling but at hte same time you are reducing mass which does the opposite. Slotted rotors are the way to go. Most of the race cars nowadays use slotted instead of drilled rotors.