Porterfield R-4 Carbon Kevlar Racing Brake Pad AP 991 R-4

Porterfield Carbon Kevlar R-4 Racing Brake Pad:  AP 991 R-4 

Porterfield R-4 Carbon Kevlar Competition brake pads are designed for motorsports use. The R-4 compound is very versatile with optimun temperatures as low as 450?F. The R-4 coumpound operates across a wide temperature range while being able to maintain an average ? of .50 and greater. The R-4 brake pads require minimal bed-in time compared to other motorsports brake pads.

Typical AP 991 R-4 applications are Porsche (997) 911 Carrera 2 Turbo Look and Carrera 2S Ceramic Disc. (997-2) 911 Carrera 4, Targa 4 ceramic disc. (996) GT2 Iron and Ceramic Disc. (997) GT2 Ceramic Disc. (997-2) GT2 and GT2 RS ceramic Disc. (996) and (997) GT3 Iron Disc. (997) and (997-2) Ceramic disc. (997) GT3 RS. (996) GT3 Cup and GT3 Super Cup. (997-2) GTS Ceramic Disc. (996) 911 Turbo Ceramic Disc. (997) 911 Turbo Ceramic and Iron Disc. (987) Boxster, Boxster S and Boxster Spyder w/ Ceramic Disc. Carrera GT Front and Rear. (987C) Cayman Coupe S w/Ceramic Discs Front brakes..