#1 Upgrade for STI Transmissions

If you own an STI with a 6-speed transmission, you may have experienced gear lockouts and grinds due to worn-out OEM synchros. Fortunately, IAG has developed a solution to this problem with their 1st-6th carbon fiber synchro set. Unlike the OEM synchros that use a spray coating, IAG's carbon fiber synchro set features a full carbon fiber lining, which provides superior performance. These carbon synchros act as a braking material during gear engagement, resulting in faster and more precise shifting. Additionally, they prolong the life of the synchro sleeve and reduce wear on the gear engagement teeth.

https://www.iagperformance.com/iag-1s...