GR Yaris / Corolla

Tokyo Motorsports has been developing power upgrade options for the GR Yaris since the ECUTEK software was released in 2022. Our own 2021 GR Yaris Rallye has served as the test bed for the development and has spent plenty of time on our Dyno because of the complexity of the software.

The torque based system employed by Toyota is difficult to understand but we have put in the effort to figure it out and were among the first in the world to start achieving good power numbers with the stock ECU.

The GR Yaris sets a new standard in performance vehicles and has a lot of potential for good power gains with minimal modifications: Exhauist and tune is a good first step, followed by intercooler and oil cooler to keep the power plant cool.

Tuning with ECUTEK RaceROM, and supporting mods, can increase power figures by 50-80Kw (70-110hp) and torque by 120-150Nm.