what are these alloys and where can i find a set
 

They are speedline ST2 i belive.

actually having another look they could be speedline corse, they are only slightly different

cheers

They look the same as mine bar the colour..mine are silver.
They're called Speedline Pro-WRC but there not made anymore. There are newer versions available from Speedline (as Flib mentioned) that are identical in looks but may be heavier and also from Inovite and another company I believe :thumb:

cheers 4 the info, have the genuine 1s got any markings on them?

Just had a look at mine...Speedline badge in the centre, "Speedline" embossed outwards in the inner rim (not on the spokes), something weight related and what looks like JIL again embossed outwards in the inner rim inbetween the spokes(All really small text, maybe 5mm).
I got mine from here;
Wheelbase - official ACE, DeCorsa and Konig distributor in the UK

But as I said they don't make the Pro-WRC anymore and it's probably identical looks wise to the one that Flib said....called an ST2? now maybe. Try searching for Speedline "Corse" alloys as this is Speedline's Motorsport inspired designs range.

Found some info for you;
Cast magnesium alloy, heat treated Supertourismo rally wheel | type 2013 | Speedline Corse Hall of Fame

Google Image Result for http://i139.photobucket.com/albums/q302/r14wrc/PARTS%20IMPREZA/_wsb_511x481_Speedline6spoke.jpg

Close but.....

SUBARU IMPREZA CLASSIC RA SPEEDLINE ALLOY WHEELS GOLD on eBay (end time 05-Sep-09 11:06:22 BST)

Or go for a set of Revolution milleniums.

http://i7.photobucket.com/albums/y263/g7prs/048.jpg
http://i7.photobucket.com/albums/y263/g7prs/046.jpg
http://i7.photobucket.com/albums/y263/g7prs/007-4.jpg

As above, the ones in the OP's link are Speedline 2013 (18"*8") & are magnesium alloy ...you can get used sets (Rally teams still use them) but i'm not sure they're available as 5 100 pcd? or will fit your spigot?

Other option are the Speedline ST2's that Prodrive 'used' to supply ...these were available in both 16" & 17" sizes, used sets regularly turn up on Fleabay (£2-300) but be aware they came in two offsets ...48 & 52 iirc (the latter being a legacy fitment)

I also seem to remember speedline japan offereing the 'ST2' in a few different sizes ...& again iirc these were called 'Pro WRC'

If you want 'new' then the Revolution copies mentioned above are the way to go

Does anyone know how much Revolutions weigh?

Thanks

http://i409.photobucket.com/albums/p...1/SP_A0343.jpg
got my st2 wheels of fleebay 330 quid with brand new pirelli p zero corsa track tyres they do come on quite regular but sell befor they end i found had to drive to plymouth for mine from stoke was a nice 500 mile round trip girlfriend wasnt as happy doing that in a day :D

I've got a set of ST2's in both 16" and 17". Car came from Japan with the 16's on, liked them so much I bought the 17's and did a 6 hour round trip from Poole to Swansea after work one evening to pick them up. 1 in the morning before I got home. Worth it though :thumb:

shame you didnt post two weeks ago i let a set of 17inch go for £50 the lot never mind good hunting.