Originally Posted by ped

It doesn’t matter whether Toyota underrated or not. Back to back dyno testing of a 2020 and a 2021 verified the difference.

https://www.caranddriver.com/reviews...a-dyno-tested/


“First up: the 2020 Supra. Even with the power-sapping driveline losses of the transmission and rear axle in play, the dyno recorded 346 horsepower and 409 lb-ft of torque.”

“After a few runs on the dyno, the 2021 engine put down 388 horsepower and 421 lb-ft at the wheels. Remove the driveline losses, and the engine appears to be capable of 400 horsepower at the crank.”