Raybestos 580401PER R-300 Performance Rear Disc Brake Rotor with S-Groove Slots

The Raybestos 580401PER is a high-performance rear disc brake rotor from the R-300 Specialty Street Performance series, engineered for drivers who demand superior stopping power without sacrificing smooth braking. This rotor features the patented S-Groove slot design that maximizes pad-to-rotor contact, delivering improved pedal feel, stronger bite, and increased pad life.

Key Features:

• Patented S-Groove slot design maximizes pad-to-rotor contact for enhanced braking performance
• Application-specific enhanced iron metallurgy suppresses noise and keeps brakes running cool, quiet, and vibration-free
• Cooling vanes match OE configurations for optimal heat dissipation, reduced fade, and extended component life
• Black Onyx coating on rotor hat provides a clean, finished appearance
• Grey Fusion 4.0 coating on inboard surfaces withstands 300 hours of saltwater exposure and reduces rust
• Meets SAE standards for tensile strength, ensuring structural integrity and long service life
• Turned finish minimizes noise and improves brake responsiveness right out of the box
• Non-directional rotation design allows flexible installation

Ideal for high-performance vehicles, work trucks, fleet applications, and family vehicles with towing capabilities. The R-300 series delivers the ultimate upgrade for drivers who need exceptional braking performance in demanding conditions. Nominal thickness: 0.430 inches; discard thickness: 0.350 inches. OEM cross-reference: GM 25956847, 88965647.