since your civic's pre obd2, just go b16a3 for the hydro tranny...thats what i say. oh yeah, if anyone is confused about the little controversy about the b16a3 being obd2, its obd1. thats where my civic is going....tomorrow, getting a b16a3, except youre a little luckier than i am...my car's an obd2 civic ex ('99) so dont be stupid like me