so the 90-91 4 Door SEDAN civic EX, DX, or SI will work with the bigger rotors + calipers [from 90+integ]? i wont be able to use anything from a crx because im trying to use the new integ rotors and rebuilt gsr calipers for the front. im kind of fuzzy on what years are the same for knuckles, i've heard 90-93 civic ex dx and si are all the same knuckles.

lastly, my front suspension is all messed up due to a bent crossmember. I'm planning on replacing the crossmember with the Place Racing x-member BUT will it work with my stock HF engine/tranny ? i'm dropping in a B series engine but not anytime soon.