Excessive heat can cause resins in your brake pad to vaporize or "outgas." As the brake pad wears, the used friction material turns into a fine dust. This boundary layer of heat, gas and dust builds up between the pad and rotor surfaces and inhibits performance. Here's where StopTech SportStop slotted brake rotors make a big difference. StopTech SportStop Slotted Brake Rotors are a true performance rotor and feature:
 
* Power Alloy castings (on select applications)
   - Engineered Performance Rotor
   - Superior resistance to cracking due to thermal stress 
   - Increased molybdenum (higher carbon)content that extends reliability, service life and helps reduce NVH “noise” issues 
   - Rotor material is a direct descendant of the patented AeroRotor from StopTech  
 * Introducing directional curve vane design (on select applications)
   - Improved vane design or OE equivalent on all rotors
   - Center split castings
 * New short slot design runs perpendicular to the vane to preserve rotor strength.
 * Direct OE Replacement 
 * Improved wet weather response 
 * Increased initial “bite”
 * Double disc ground for a consistent friction surface and Improved pad bed-in
 * Mill balanced
 * Black E-Coated non-friction surfaces on “Power Alloy” rotors
 * Enhances open wheel appearance