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Suspension Bushings
Softest <> OEM <> Powerflex Street (75A) <> AKG Street (95A) & Powerflex Race (95A) <> AKG Track (75D) <> Hardest
Rubber OEM bushings deteriorate with age, becoming softer and more pliable. This allows excess movement of suspension components and less control over suspension geometry. The result is excessive tire wear, braking instability and poor handling.
Which bushings are best for my dedicated race car? AKG's 75D is by far the hardest polyurethane compound available for a BMW and will tremendously improve many aspects of a race car's handling characteristics. 75D will control a racecar's suspension geometry during the rapid movements a race car experiences on the track. The only material harder is aluminum, which is only suitable for a track only car.
Which bushings are best for my high performance street car? High performance street cars will see a noticeable increase in performance with AKG's medium durometer bushings or Powerflex's street or race bushings. These 80A, 85A, 90A and 95A durometers utilize the most ideal hardness and compound for street/performance use, providing for an increase in performance without a large increase in Noise, Vibration or Harshness (NVH).
