Chris, I was lucky enough to have a couple of 21watt bulb holders kicking around so I dont know if H do them.

I would get genuine Subaru ones...same as the oe indicators have fitted with the 'rubber' seal.
You could try a breakers or failing that main dealer.

I think there is a scooby breaker on the net...not too sure

Anyway, have a think about it, if you can get the bits we are in business.

Oh by the way...terms and conditions....I dont pay if they get lost in post or stolen by the postman.
You dont pay if I cut my finger off with a stanley knife.