After upgrading my car's brake system with these discs, I can say with confidence that the difference in braking power is night and day. Automotive enthusiasts know how important a responsive and reliable brake system is, and as a result of my tests, I determined that these discs are top-of-the-line. The durability and design of these brakes are impressive; the only downside is the price tag. However, in my opinion, the investment is worth it for the added safety and performance on the road.