I have 2002 Jdm sti bug wagon, it has factory hid like it has on the the saloon sti, what bulbs do I need please help

 

If it's factory fit, they will be D2S.

Best to fit in PAIRS unless you know the make and colour temperature of the existing bulb.

You ARE sure it's the bulb gone and not a faulty ballast?

Try changing the bulb from one side to the other. If the problem moves, it's the bulb. If the problem goes away it's the ballast.

I'd also advise NOT buying cheap Far eastern bulbs, stick to Philips, Hella, Morimoto.

 

The bulbs are fine but very dim now so very hard to see when night driving, I have just bought 2 £39 each so job done now, thanks for the help

 

Very dim? Not come across that before, they are usually on...or off.