they are adjustable
but if the adjustable little lever breaks you have to buy a whole new headlight
back then they were around the £300 mark
so about half the value of the car

don't get me wrong, if you gave me one for free i'd take it and drive it like a loonatic

but i wouldn't spend my money on one, may mate bought his for £14500 and sold it about 18 mnths later for around £8500

i told him to buy the 944 turbo but he wasn't having any of it and thats his fault