I want them all to light up blue instead of the normal green/yellow, to match my boost gauge.
Can i just change the bulbs for blue ones or is there a coloured filter that makes them green/yellow colour inside the clocks?

Cheers!

 

there is a colured filter (S2 escort) the bulbs are not coloured when you remove them.

 

you can buy white dials though and coloured bulbs but there not very bright my mate did it to his car and you could barely see any of the dials

 

I was looking at ultra bright LED ones, maybe they are brighter!?

 

the ones he tried were just normal bulbs that were blue so led's might be brighter