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| REAR for BMW: 08-13 128i, 06-11 323i, 2006 325i, 2006 325Xi, 07-12 328i RWD, 07-13 328i xDrive, 12-15 X1 sdrive28i Axle set of 4 pieces |
Raybestos ST42
Lower mu than ST-41 and ST-43. Extremely stable average and in stop output over a wide temperature range. Has been very successful when used on the rear brakes in conjunction with the ST41 on the front. Best high-temperature wear of all their materials.
Raybestos ST43
Excellent wear rate on rotors and pads. Friction level between ST-47 and ST-42. This is the most popular compound for HPDE, Open Track and Endurance racing.
Raybestos ST45
Lower friction level than the ST-47. Slightly higher friction level than ST-43 while maintaining good rotor and pad wear. Could be used as a great rear to compliment the ST-47 compound.