I recently upgraded my car's brake system with these dimpled slotted brake rotors and the difference is remarkable .The stopping power has improved significantly, and the brakes are much more responsive. As a result of my tests, i determined that these brake rotors are ideal for high-performance automotive applications. The dimples and slots make a real difference and help keep the brakes cool under heavy use. The only downside to this product is that it is a bit expensive compared to other brake rotors in the market. However, the quality and performance are worth every penny..