For use with 4 Pot TT UK/USA/Euro Spec calipers only Project Mu B-Force Sports Pad is designed to improve overall braking performance of any street vehicle. The B-Force brake pad is developed for street and light track use where initial stopping power and resistance to fade is of prime importance. In addition to reducing brake dust and squeal, these long-lasting pads help keep rotor wear to minimum. Applicable Rotor Temp: 0~500 deg. Celsius Friction Coefficient: 0.32~0.42 Late model Japanese cars Project Mu HC The carbon metal material in the HC will perform well without eating up your rotors. HC is the most aggressive street sport pad and can stand up to track racing and still get you home. The HC is Project Mu's strongest performing street pad with maximum controllability and fade resistance. Specs: Material: Carbon Metal Applicable Rotor Temp: 0-800°C Friction Coefficient: 0.43-0.58ì Project Mu Level Max 900i The Level Max 900i pads offer ultra functionality to attack the track in your GTR. These pads are for cars that spend most of their time on the track. Stopping power is fierce and controllable at the expense of noise. Specs: Material: Carbon Metal Applicable Rotor Temp: 100-900°C Friction coefficient: 0.45-0.57ì Racing 999 Developed through practical testing in GT races, this brake pad is ideal for everything from time attack races to sprints. Racing 999 pads trade off some life compared to the 777 in exchange for stronger stopping power. These pads are for race use ONLY. Specs: Material: Carbon Metal Applicable Rotor Temp: 200-800°C Friction Coefficient: 0.45-0.59ì