There are a couple of combinations you can have though; not only a visor + spoiler but also the types of spoilers there are.
WingsWest; M3 Trunk Lip; Mugen Spoiler, Mugen, Si
I'm going to continue to be a 2slo4u's old HX fanboy like usual and share these pictures of his spoiler + roof spoiler before he sold it.
Other spoiler/visor pictures on 6th gen coupes: