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.

Synchro set for 3rd and 4th gears for JDM & US H22 transmission with the following tranny case ID#:

• M2Y4
• M2U4
• M2F4
• M2A4
• M2B4
  
  Please note: Synchrotech parts cannot be canceled / returned or exchanged.