This support is necessary if your Corsa-B / Tigra-A is fitted with power steering. Everything of your power steering stays the same (pipes and housing) except for the pump. A belt driven pump must be removed from a 2.0L Opel/Vauxhall engine. To mount this pump from a 2.0L to your 2.0L engine in your Corsa-B/Tigra-A you will need this special support and drive belt.
(The original aluminium 2.0L pump support will not fit in a Corsa-B /Tigra-A. This is only possible with this special support)