I am building a turbo 02 to MY liking but was thinking of what class it might be in if I were to get into racing. Any ideas?

Specs will be:

bored to 91mm forged flat tops with ~8.5 cr
dual springs, oversized intake and exhaust valves
292 cam, 318 intake mani
Holset HX35
SDS tuning
big brakes all around
coilovers
rollcage.

I hope to put down ~280. With that said, IF in the future, I wanted to get into racing my 02, what class would I be running in? Please dont say "if you wanna race the 02, build it for a specific class" because I might not ever race the 02.
_________________
75 2002 "Project Turb02"

95 Hellrot M3

95 332is *Sold