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Powerflex Performance Black Series E46 (also fits E36 M3) Rear Trailing Arm Bushes are for track/race use only.
We used the original Powerflex Bushes on our race cars, but upgraded to the Powerflex Black Series as soon as they were released, and we noticed a great improvement during testing.
This part, fitted to the rear of the front wishbone has a hard annodised aluminium outer shell with one of our unique low friction polyurethane centre bushes.
The polyurethane/aluminium combination creates a low friction rotating bush reducing the forces acting on the arm.
Lower arm deflection has been decreased by reducing the compliant material within the aluminium shell. Results are less movement in the arm under cornering and braking, improving steering control and feel.
The Powerflex Rear Trailing Arm Bush makes for a great replacement and upgrade over the original bush.
