the reason they run those sizes is probably because it's more profitable for them or it might be a package for civics/tegs. you can always ask for other tire size packages because you need the right ones for your car! i am not sure what the stock tire size is on the 94 ex, but if it's like the 4th gen ex cars that have 195/60/14 (rolling diameter is 24.21"), the new tire size should be 225/35 (rolling diameter is 24.20").