The Perrin PSRS kit with caster adjustment provides a solid bushing but relocates the OEM control arm to subframe mounting point to be off center. The non-concentric hole allows your (or your installer or alignment specialist) to rotate the bushing to adjust your Evo's caster (some racing classes do not allow for an offset bushing, refer to your organization's rules for legality). The adjustable Perrin Evo PSRS can provide nearly 1.5 degrees of additional caster to your Evolution.

Part Number: PEP-SUS-400