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If you want the Ultimate in a performance tuning solution, you take a look at the UCON-EMS:
https://www.urdusa.com/ucon-ems-advanced-engine-management-for-toyota-1gr-fe-4-0l-v6/
https://www.urdusa.com/ucon-ems-advanced-engine-management-for-toyota-1gr-fe-4-0l-v6/