When Carbotech™ unleashed the XP10™ to the general public it immediately gathered multiple regional, divisional, and national championships. The XP10™ has a very strong initial bite with a coefficient of friction and rotor friendliness unmatched in the industry. Fade resistance is in excess of 1475°F (801°C). XP10™ still maintains the highly praised release, excellent modulation and rotor friendliness that have made all Carbotech™ compounds so successful. NOT FOR STREET USE! Operating range starts out at 250F and goes up to 1475. Friction coefficient is rated at 0.60. We recommend this pad for fast track applications. Fit and Compatibility:Fits Porsche 911 Carrera 2 - 991 3.4L w/Iron Discs FRONT factory calipers.