Honda Dealerships...What do they know? Everytime I go in they try to convince me that my car is an em1 and have never heard of an SiR.

96+ Civics that have drum brakes come with a 13/16" master cylinder
96+ Civics that have rear disc brakes come witha 7/8" master cylinder
Integras come with a 15/16" or 1" master cylinder