Does anybody know for a fact if the 99 Civic EX brake master cylinder is bigger than the 99 Civic DX one? They look the same to me. I currently have the DX cylinder and want to know if it will make a difference in braking. The salvage guy told me that the GSR, Type-R, SI, EX are all the same. So he sold me the EX one. Any truth to this? I don't want t go through the hassle of replacing it if it doesn't make a significant difference. I would appreciate your replies. Thank you.