Powerflex Polyurethane Bush kit for Vauxhall / Opel ASTRA MODELS Rear Engine Mounting Insert - PFF80-1421 - Fits VXR and OPC models only. - Bush Size: - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!