Civic EG

Last night my brake booster gave out while I was driving. I have to basically stand on the brake pedal to make the car stop and every time I touch the pedal, there is a loud hissing noise. Sounds like a vacuum leak. Since I can't afford a new booster, tomorrow I'm gonna make a trip to my local Pull-A-Part and see if I can find a replacement. I know I can use a booster from a 92-95 civic or DC integra.

My question is, how can I tell the difference between an ABS booster and a non-ABS booster and does it matter?

the why the master cylinder sits is different. usually almost any integra you'll find is going to be abs unless you get lucky and find a RS.