Synchrotech Synchros are carbon lined for ultimate performance! These are not your average synchro rings! They use carbon friction technology that acts as a braking material during gear engagement. This allows for quicker and more precise shifting.

3rd-4th carbon synchro 2pc set for the following 92-01 cable/hydro B-series transmissions:

92-93 US/JDM YS1 cable transmission (Integra XSI/RSI, 92-93 US GSR)

92-01 B16A US/JDM hydro trans - Y21, S4C

94-01 Integra Type-R / GS-R trans - Y80, S80

Please note: Synchrotech parts cannot be canceled / returned or exchanged.