https://www.as-web.jp/supergt/612126?all
https://supergt.net/news/single/20197
GTA publishes new bulletin that 4 tire change mandatory rule in the race won't be applied to after 3rd round.
Along with this, the fuel flow restrictor diameter will also change to 27.5 mm for both JAF-GT300 and JAF-GT300MC.
This regulations change is due to the fact that safety was ensured as a result of the 2nd round and that fuel-only-pitstop is difficult in Suzuka.
*There is a rumor that the fuel flow restrictor diameter of JAF-GT300/JAF-G300MC may be changed in the future.