POWERBOND RACE 5% OVERDRIVE HARMONIC BALANCER TO SUIT HOLDEN CALAIS VS-VY ECOTEC L36 L67 S/C 3.8L V6This Powerbond Race 5% Overdrive balancer brings the advantages of a bonded balancer to high revving race and street race applications where an SFI approved balancer is required. Every Race series Powerbond balancer features a precision CNC machined AUSI 1045 forged steel hub bonded to an equally strong steel inertia ring. Advanced design means that Race series balancers are very light for an all steel product. In most cases they are only marginally