This Kevlar and Ceramic-strengthened compound offers far and away the best price to performance ratio currently available in a high performance street pad. Performing a proper bedding procedure is critical to the performance of this pad but once complete, you can expect truly world class bite, MOT, minimal rotor wear, pad wear, and noise levels. Dust is medium to high. On front engine platforms, the ULT is excellent for aggressive street and autocross use in the front calipers. It also works very well in the rear for applications ranging from aggressive street to moderate track use. ULT is NOT recommended for use on road courses in front calipers. Doing so can cause pad deposition on rotors as well as the resulting vibration. Street only. OK for club level track use in rear calipers.