using a rhd fire on a lhd drive car isnt safe at all... im not saying it cant be done, but to do it correctly the car would have to be put on a jig to keep it square while that wall is out.... and if you ever crash it the firewall WILL NOT work the way the original piece did becasue it was transfered to the civic.... jsut my 2 cents.......keep it lhd, put the b18 in and drop the rest on parts