Z4M E85 & E86 (2006-2009) - BLACK SERIES
POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry. They are designed for the Track, ready to Race and are engineered to be the best.
- The Z4M uses PFF5-5601G to achieve the standard caster, other front arm bushes will reduce the caster.
- PFR5-4610 & 4611 are complete replacement bushes, for inserts use PFR5-4612 & 4613 (inserts fit into the voiding of the original bush)