We have used Powerflex bushings for a long time.. So long we use to order them direct from the UK when it was the only place to get them!
Powerflex's special polyurethane is an advanced material with unique properties. Upgrade with high performance bushings, bushings that won't cause vibration or noise and include a Lifetime Warranty.
PFF5-5303 includes a CNC-machined aluminum outer shell with an eccentric bore, increasing caster by 6.5mm / 0.5deg (standard '96-'99 M3 geometry). With the machined shell, and reducing the amount of polyurethane material used, we have increased stiffness by a further 50% over PFF5-301 and PFF5-303, and a massive 250% over the standard OE rubber bushing. The results are incredible, with minimal deflection under steering load and braking, while maintaining a balance of compliance and performance.
OE / OEM Cross Reference Numbers: 31129059288 / 31129058815 / 31129058931
We have chosen products from our range to maximize the performance of the suspension, while being mindful of cost with a price savings over buying the parts individually.
This can be an ideal upgrade complementing other suspension upgrades such as shock absorbers and springs.