If you are an experienced track day enthusiast running R-Compound tires, or are competing in a spec racing series such as Spec Miata and want the ultimate performance brake pads, then look no further than PowerStop Track Day Spec brake pads. The PowerStop research and development team spent countless hours matching the right pad compound to each individual vehicle platform so you don't have to spend countless track days figuring it out yourself. These platform-specific brake pads have an excellent coefficient of friction and resist fade during the rigors of your favorite track day event or competitive spec racing series.