I have a pair of control arm bush (PU) from powerflex. It is almost brand new as was using it for about 2 weeks only. PU bush has a longer lifespan compared to the normal bush. Increased braking efficiency (less nose drive during hard braking) and sharper steering response. Down side of the PU bush is it may cause some squeeking sound when goung through bad roads.Bought for RM380 and now selling for RM280 per pair.