C8.R which has been the slowest car of this class still got wacked again by the fricking BoP
Corvette - Added +10KG Weight
Ferrari -3L Fuel
Porsche -5KG Weight, +2L Fuel, +0.4mm Restrictors

The Balance of Performance updates in GTE-Pro were made manually by championship organizers the FIA and ACO, rather than being adjusted by the automatic system that has been used since 2017. Automatic BoP changes can only occur after two races outside the 24 Hours of Le Mans that have yielded sufficient data, however it rained at Spa and the Monza correction was manual.
Manual changes can be made for various reasons, including in response to the attainment of new car data.

C8.R Corvette Racing driver Tommy Milner said that his team considers its car’s 10 kg increase to be worth three-tenths of a second slower against the Porsche 911 RSR-19, which received a 5 kg break and an air restrictor diameter increase.

“We’re kind of still finding our way a little bit here with car setup and stuff like that, so we’ll never know what the actual full effect is,” Milner explained.

The manual BoP change for Fuji means that, with only one more GTE-Pro race to run, the category’s BoP will be manually adjusted by the organizers for the final round too.
“The only [automatic] BoP change for Bahrain would have been possible [by] taking the Monza and Fuji result,” said Porsche’s director of factory motorsport for WEC Alex Stehlig.
“But now they’ve made another ‘black ball’ change, so it’s the end of auto BoP.”