I would like to know the front disc size (in mm, not inch please) of the 1999 civic Si.
Because, if it is the same like my VTI EK4 (B16a 160hp), I can buy the AEM Big rotor kit.
i think you can use the AEM kit, i know that the civic CX, DX, LX came with 9.5 inch, and the EX civic came with a 10.2 inch rotor, you have the larger engine so i think your came with the larger rotors,