Rear Upper Wishbone Inner Bush PFR5-4617

POWERFLEX Standard silent blocks for BMW M3, Z1 and Z4 (no. 17 Rear suspension arm)


The POWERFLEX silent blocks are firmer than the standard equipment and are indispensable for racing as well as for trackdays and road use.
They contribute to maintaining the correct geometry of the vehicle and to a better work of the suspensions and tyres!
The polyurethane silent blocks are made of a material that is resistant to petrol, oil, acid and water.

Advantages :
- Increased service life.
- Firmer suspension (standard rubber bushes give more variation to the mechanical elements).
- Improved vehicle handling and tyre work.
Choose your silent blocks from the 3 existing ranges:
- Road Series (yellow 70A & purple 80A): Ideal for trackdays and road use!
25% to 30% firmer than the standard fitment with the same noise absorption and a longer life for the silent blocks and tyres.

- Black Series (black 95A): The best choice for competition and extreme conditions!
80% more load bearing than the original and 25% firmer than the Road Series. Maximum firmness for perfect chassis geometry control.

- Heritage Collection: Tailored to your classic car!
Retains the look of the original rubber silent blocks but with the unique properties and extended life of polyurethane.

Sold by 2.
Position on diagram: 17.

This silent block is suitable for :
BMW E36 including M3 (1990 - 1998)
BMW E46 including M3 (1999 - 2006)
BMW Z1 (1988 - 1991)
BMW Z4 E85 & E86 (2003-2009)
BMW Z4 E89 (2009 -)
BMW Z4M E85 & E86 (2006-2009)

Made in the UK.