Im going to put a 99 integra ls rear disc brakes on my 2000 civic dx and i have bought a proportion valve from someone on ebay. They said it was from a 2000 civic si that was non abs. My question is how can I tell if it is a si valve or not. It dosen't say 40/40 or anything like that all it has on it is N4cE on the front and then on the side it has 5 L 6. Thanks for the help.