Our team recently upgraded our automotive brake system with these slotted and dimpled brake rotors, and were extremely pleased with the results .Using this product, our team FOUND that our car had more consistent and powerful stops, with less fade after repeated use. The added dimples and slots also help to dissipate heat and prevent brake pad glazing which could increase the lifespan of our brake pads. The only downside we noticed was a slight increase in brake noise, but it is a small tradeoff for the noticeable improvement in stopping power. Overall, we highly recommend this brake system upgrade..