You are looking at a Vauxhall Z22SE Alloy Rocker Cover
It has been painted in Sunrise Orange and adds a splash of colour to any engine bay
The rocker cover new from Vauxhall is £160+VAT when I called them to buy one
Perfect to be fitted, or even rub down and colour code to whatever you want
All the work and effort has been done for you
Im after £65 posted
Some more images
Thanks for looking