I heard that for 19" wheels w/ the brembos, they have to be 10.5 rear and 9 front. Is that the only size that will fit?

depends on the spoke design

Will the stock rims on an evo 8 fit our cars (the Enki rims)?

evo rims are 17" ... why would you want that? unless you're tracking or autox?

Yeah if you wanted something for autox or tracking, kinda like a spare set. Would those wheels fit our car? like they have brembo so i think they would clear. From what i've heard they are good light weigh wheels. would it work?

I think they'll work, they seem to clear the factory brembos on the evo's fine

is it the same bolt pattern?