Sure thing.
Most people cut off the brackets from their stock seats and weld/fab up something to make the seats fit.
But if you want to do it the correct way contact
Wedge . They have brackets plans for most cars and will make a set designed specifically for the Evo 8\9 Recaros. Now be sure to tell them that those are the seats you will be using. That way they will make them specifically for those seats. They may actually ask you to verify the mounting hole dimensions on your seat (as they said some people had been giving them all sorts of dimensions).
Just an FYI, these are the dimensions I sent them and they lined up perfectly: (again these are from center hole to center hole)
13 7/16th" from Front to rear
15 13/16" from side to side.
These are not the cheapest option out there, but they come with Lifetime warranty and are of EXCELENT quality.