How much horsepower does an ATS-L gain with a stage 3 tune?

[JackDella]

With a stage 3 tune, the ATS-L can achieve approximately 400 horsepower at the wheels, with engine output reaching close to 500 horsepower. Below is an introduction to horsepower calculation methods and classifications: Horsepower calculation methods: 1 horsepower is approximately equal to 735 watts. This generally refers to metric horsepower rather than imperial horsepower. 1 horsepower equals the work done to lift 75 kilogram-force meters in 1 second, also equivalent to 0.735 kilowatts, known as metric horsepower. 1 imperial horsepower equals 550 foot-pounds-force per second, equivalent to 76 kilogram-force meters per second, or 0.746 kilowatts. In China's legal measurement units, the unit of power is the watt. Horsepower classifications: Horsepower can be divided into two types: metric horsepower and imperial horsepower.