Anyone know where I can get this black clip from? There was two but the little one on the right snapped off when a took it off the manifold. Or will it be ok with just the Xmas tree clip alone? Thanks 

It’s known as a fir-tree clip but they come in different types - some are part of a cable tie to attach to harnesses then those like in your photo are on a flat plate which locks into a connector housing.

They usually have the fir-tree section then a second stub which simply goes into a second hole as an anti-rotation feature. So not big issue if it’s missing, just maybe put a cable tie round it all to help the connector stay in the right place

Bot like this

 

Okay thanks for your help really appreciate it 🙂 got to get a new manifold for my focus I’ve managed to take it off but dreading put it all back together 🙈