These replacement upgraded synchros have been designed from brass with carbon sleeves to improve shifting and durability of your late or early model Toyota transmission (C59, C60, C64, C66). S111 partnered with Synchrotech who developed these from carbon-carbon tech derived from aerospace applications. Used successfully in Honda street and race cars for years. Track tested in S111’s Elise (ArtCar v2).
Extended durability and faster shifts. To enhance the OEM Toyota C-series transmission to withstand track conditions and spirited driving, replacement synchros were manufactured from brass with carbon sleeves. In collaboration with Synchrotech - a Honda transmission specialist with a long history of race applications - these synchros with carbon technology derived from aerospace applications are now made available to the Lotus/Toyota market. These synchros not only increases the longevity of your gearbox, but also substantially improves the feel and speed of selecting gears.