The ACDelco Advantage Semi Metallic Sensor is a game-changer! Based on my observations, my car's braking performance has significantly improved. The semi-metallic material provides better durability and increased stopping power perfect for my performance vehicle .Installation was a breeze thanks to the direct fit design. The only downside is the slight increase in noise compared to the previous brake pads, but it's a small inconvenience for the immense improvement in performance. Overall, highly recommend!