This compound has won in CART Champ Cars, and the 24hrs of Daytona. 99 Compound has slightly higher bite, and higher torque than 97 Compound with excellent release. It has improved modulation throughout its range, and a very flat torque curve compared with 83. 99 Compound is very easy on the discs, and has very low wear. 99 has been a favorite for street circuits where the track conditions are at their worst, and lock up is a problem. It has been replaced in PFC’s lineup by 01 Compound, but there is still limited availability in some pad shapes.99 can be replaced with 05, 07 or 13 compounds. 99 Recommended Applications: For applications that demand excellent wear and modulation. Champcar, Endurance GT, SCCA Racing and Porsche/BMW Club Racing.